Impulse Definition and 905 Threads

Homework Statement To make a bounce pass, a player throws a 0.60 kg basketball toward the floor. The ball hits the floor with a speed of 6.5 m/s at an angle of 58° from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor...

Homework Statement 2 equal mass balls (one red one blue) are dropped from the same height and rebound off the floor. the red ball rebounds to a higher position. which ball is subjected to the greater magnitude of impulse during its collision with the floor? a. it's impossible to tell...

1. Small rockets are sued to make small adjustments in the speed of satellites. One such rocket has a thrust of 59N. If it is fired to change the velocity of a(n) 74000kg spacecraft by 54cm/s, howl ong should it be fired? Answer in units of s. 2. F=deltaP, delta t; F=mVf-mVi...

A 60g handball moving with a speed of 5m/s strikes the wall at a 40 degree angle with the norm, and then it bounces off with the same speed at the same angle with the norm. It is in contact with the for 2.0ms. a)What is the average force exerted by the ball on the wall? b)The rebounding...

Homework Statement The Figure shows an approximate representation of the contact force versus time during the collision of a 66-g tennis ball with a wall. The initial velocity of the ball is 4.375E+1 m/s perpendicular to the wall. What is the speed of the tennis ball after the collision...

Homework Statement Ok, I am supposed to find the impulse of a .12 kg ball dropped from a height of 1.25 meters. It bounces back from the floor to a height of .6 meters. Not really sure of all the equations needed, I need a lot of help.

Homework Statement Two particles A and B, of mass 0.3 kg and m kg respectively, are moving in opposite directions along the same straight horizontal line so that the particles collide directly. Immediately before the collision, the speeds of A and B are 8 m s–1 and 4 m s–1 respectively. In...

I am interested in how impulse turbines work. Supposing a mass of water (in kilograms), m, is expelled by a jet at a given velocity (in meters per second), v, its momentum (in Newton-seconds), p, is the product of these quantities: p = mv. Also, a paddlewheel’s angular momentum (in...

Homework Statement A proton has mass 1.7x10-27 kg. What is the magnitude of the impulse required in the direction of motion to increase its speed from 0.995c to 0.998c? Where c is the speed of light. Homework Equations Im not quite sure of what equation is supposed to be used. I tried using...

Homework Statement A ball is dropped from a height of 1.75m. It bounces on the floor and reaches a maximum height of 1.35m above the floor. The ball's weight is 98.5g. a) What is the ball's velocity just before and just after the bounce? b) How large is the impulse that the ball gets in the...

I'm trying to determine the feasibility of a project, but have not yet taken fluid dynamics (next quarter). I'm trying to figure out how much power could be produced with a CO2 powered turbine. The turbine will be activated for only a few seconds at a time, with speeds under power ranging...

Homework Statement A 300g ball with a speed v of 6.0m/s strikes a wall at an angle theta of 30 degrees and then rebounds with the same speed and angle. It is in contact with the wall for 10ms. In unit-vector notation, what are (a) the impulse on the ball from the wall and (b) the average force...

A railway truck S of mass 2000 kg is traveling due east along a straight horizontal track with constant speed 12 m s–1. The truck S collides with a truck T which is traveling due west along the same track as S with constant speed 6 m s–1. The magnitude of the impulse of T on S is 28 800 Ns...

I was working on a basic momentum/impulse problem where a block is pushed by a force P over a time T that is plotted on a graph...Kinetic Friction is given but how would I incorporate that into the equation to find the velocity? I know the impulse is the area under the curve... mv_{1} +...

[b]1. 2) A car is moving at 60.0 m/s and crashes into a wall. The messenger is not wearing his seat belt. a. What is the average force acting on the passenger of 70 kg if he is brought to rest by a collision with the windshield and dashboard that lasts 3.5 ms. b. Compare this value of the...

Homework Statement A charged parallel-plate capacitor (with uniform electric field \mathbf{E} = E\hat{\mathbf{z}} ) is placed in an uniform magnetic field \mathbf{B} = B\hat{\mathbf{x}} (a) Find the electromagnetic momentum in the space between the plates. (b) Now a resistive wire is...

Homework Statement A ball of mass .110 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of .800 m. What impulse was given to the ball by the floor? Homework Equations I=ΣFΔt Δp=I The Attempt at a Solution Could someone please tell...

I am making a physics simulator for a computer. All objects have their translational and rotational momentums stored, and each frame, objects are moved according to these values. Upon collisions, momentum is transferred from one object to the next. However, I do not know how to find how...

Homework Statement Two particles have mass 0.12kg and 0.08kg respectively. They are intially at rest on a smooth horizontal table. Particle A is then given an impulse in the direction AB so that it moves with speed 3m/s directly towards B. Immediately after the particles collide the speed...

[SOLVED] Linear momentum and impulse problem Homework Statement A 3.0-kg steel ball strikes a massive wall with a speed of 10 m/s at an angle of 60 degrees with the surface. It bounces off with the same speed and angle (see Figure 9.30). If the ball is in contact with the wall for 0.20 s...

I have a problem in trying to express a net force equation for a falling elastic object when collision ensues. For instance, you drop a spring with a spring coefficient k. the spring compresses a distance x after a time t for a maximum time of tf and distance xf. the spring has a weight W...

A problem I am working on for a project... Force required to hit a golf ball 76.2 m/s Does the impulse assume the collision is perfectly elastic? I am doing a problem on golf... mass of golf ball .0459 kg velocity of ball is 76.2 m/s time of interaction is .0005 seconds coefficient...

Homework Statement Homework Equations \vec{p} = m\vec{v} F_{net} \times (t_{2} - t_{1} )= m_{2} v_{2} - m_{1} v_{1}The Attempt at a Solution So part A was easy, All i did was find the Velocity just before it hits using constant acceleration formula and times that velocity by mass. So, my...

Homework Statement A large plate is dropped and breaks into three large pieces. The pieces fly apart parallel to the floor. As the plate falls, its momentum has only vertical components, none parallel to the floor. After the collision, the component of momentum parallel to the floor must...

Annihilation (connecting positron and electrons) gives us 2 gamma rays. I.e ^{0}_{-1}e+ ^{0}_{+1}e \rightarrow 2 \gamma In my textbook says: Now my question, what is law of preservation of impulse?? Why e is written like ^{0}_{-1}e instead of e^-^1 or something??

A grenade of mass 10 kg explodes into three pieces in the same plane, two of which, A (5.0 kg) and B (2.0 kg), move off as shown. Calculate the velocity of the 3.0 kg third piece, C. I cannot show all of my work becuz it is basically just a sketch of what the diagram would look like, then...

I have this exercise of many i have to do but this is the hardest of them and i don't get it much. While a car is stopped at a traffic light in a storm, raindrops strike the roof of the car. The area of the roof is 5.0 m^2. Each raindrop has a mass of 3.7 x 10^-4 Kg and speed of 2.5 m/s...

[SOLVED] collision and impulse Homework Statement A 1.0 kg ball drops vertically onto a floor, hitting with a speed of 20 m/s. It rebounds with an initial speed of 5 m/s. (a) What impulse acts on the ball during the contact? kg·m/s (b) If the ball is in contact with the floor for...

1. A car moving along a straight road starts to decrease its speed linearly with distance travelled, such that its speed drops from 50 m/s to a value which would approach zero after 100 m. What distance will have been traveled when the car`s acceleration is -10m/s^2 /. Answer is 60m , but how...

Homework Statement Given the transfer function of a linear, time-invariant system H(z)=\frac{z^2+5z}{z^2+5} compute the impulse response. Homework Equations We are supposed to compute the inverse z-transform with partial fraction decomposition but the problem here is the irreducible...

Homework Statement a 250 g ball with a speed v of 6.6 m/s strikes a wall at an angle θ (the angle between the wall and the path of motion) of 30° and then rebounds with the same speed and angle. It is in contact with the wall for 6 ms. What is the impulse on the ball from the wall...

Homework Statement A 20 g cricket (Acheta domestica) leaps through a 2.2 m horizontal distance. The initial velocity of the cricket makes a 28° angle with the horizontal direction. If it takes the cricket 0.010 s to leave the ground, what is the magnitude of the impulse of the total force on...

Homework Statement what value of Fmax gives an impulse of 5.6 N\s? Picture of graph below http://session.masteringphysics.com/problemAsset/1070437/6/09.EX05.jpg Homework Equations Jx=Integral from t initial to t final of Fx(t)dt ^px=Jx The Attempt at a Solution I started...

Homework Statement A bullet of mass 0.03kg is fired from a gun with a horizontal velocity of 400 ms^-1. Find the momentum of the bullet after it is fired. If the gun is then brought to rest in 1.2s by a horizontal force which rises uniformly from zero to B N and then falls uniformly to...

Hello, I am (obviously) new to the forum. I am in an introductory-level physics course in university and although I had taken a year of physics in high school, these easy intro questions on my homework keep snagging me. This is online homework and I get 5 attempts at the correct solutions...

I attempted the qn .. but I'm not sure if this is the correct way of going about it.. the relevant equations used weren't given. Homework Statement Force and Impulse: The magnitude of an unbalanced force on a 10 kg object increases at a constant rate from 0N to 50N in 4.0s, causing the...

[SOLVED] Impulse of deflected ball 1. Recent studies have raised concern about `heading' in youth soccer (i.e., hitting the ball with the head). A soccer player `heads' a 0.421 kg ball, deflecting it by 50.0 degrees, and keeps its speed of 10.40m/s constant. (The deflection angle is the angle...

1. What is the basic SI unites for momentum and impulse? 2. Know whether impulse and momentum are vector or scalar quantities. 3. What does it mean for a system to be isolated? 4. Differentiate between external and internal forces. 5. Differentiate between elastic and inelastic collisions...

i was doing some research on future methods of space flight when i noticed something called a reactionless drive . impulse if you will. http://jnaudin.free.fr/html/impdexp.htm i was wondering if what the info says has been confirmed and if so how it works .

Hey guys, this is my first post and I'm looking for a bit of help This is going to sound really easy (and I know it is) but I can't for the life of me remember how to work out the Impulse Response Function of this system. I've tried google for a few hours but nowhere that gives it in laymans...

Homework Statement Hail stones of mass 0.0650 kg are falling straight down with a speed of 15 m/s when they strike a car roof. If the hailstones bounce to a height of 12 cm above the car, what is the impulse that the car roof imparts to a single hailstone? Homework Equations p=mv J=Ft...

"Back of envelope calculations" for thurst, specific impulse, etc. I am working on a project that is really out of my realm of experience, so if you could give me some basics, that would be much appreciated. How do you determine the amount of thrust, power, etc. needed to travel a distance of...

Homework Statement A 20g cricket leaps through a 2.55 m horizontal distance. The initial velocity of the cricket makes an angle of 30 degress with the horizontal direction. If it takes the cricket 0.019s to leave the ground, what is the magnitude of the impulse of the total force on the...

Hey. Just wondering if I could get a little help with this quest please. A flywheel has a moment of inertia of 854kgm^s, and is allowed to come to rest from and angular velocity of 450rpm. Knowing that kinetic friction produces a resisting moment of magnitude 14Nm, determine the time required...

Two particles A & B of masses 3 kg and 4kgr connected by a string and lie at rest on a smooth horizontal table with string taut. B is struck wid a blow directly away from A so that there is an impulse of 8Ns transmited along the string. Find speedd with which A begins to move. ans is 3/8

Homework Statement A 0.47 kg soccer ball approaches a player horizontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 24 m/s. What impulse was delivered to the ball by the player? Answer in kg*m/s...

Homework Statement A bird is initially perched on a swing with a mass of 153 g. The bird has a mass of 52 g. The swing is 8 cm below the point of attachment to the top of the cage. The bird/swing are initially at rest. The bird takes off horizontally at 2 m/s. How high will the base of the...

A 75 kg man is sitting in his car at rest at the stoplight. He is rear-ended by another car and is accelerated to 3.0 m/s in 0.2s. What is the impulse on the man and his car? I found the impuse on the man which was: I = m(change v) = 75(3.0 -0) = 225 Ns I found the Net force on the...

[SOLVED] Calculate Average Force by finding Impulse over Impact Time Homework Statement A movie depicting a 55-g golf ball hit with a club shows that the impulse time between the club and the ball is 0.2 ms, and the initial speed of the ball is 136 mph. a) What is the average force exerted...

Homework Statement In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in snow, suffering only minor injuries. Assume that his speed at impact was 60 m/s (terminal speed), that his mass (including gear) was 80 kg, and that the...