in a movie stunt, a 65 kg skier starts from a rest postion at the top of a hill 30 m high. she slides down the hill to the bottom, where she collides with a 45 kg stationary skier. the collision is completely inelastic. find the fiinal velocity of the skiers.
ATTEMPT.
i know i have to use...
Homework Statement
A particle of mass m1 and momentum p1 collides with a particle of mass m2 at rest. A reaction occurs, as a result giving two new particles, with masses m3 and m4, that are emitted at angles
\theta_3 and \theta_4, in relation to the original direction of m1. Determine the...
This is a problem I have thought about for a long time without any progress. Please give me a hint.
Homework Statement
Cars B and C are at rest with their brakes off. Car A plows into B at high speed, pushing B into C. If the collisions are completely inelastic, what fraction of the...
For my intro to physics class, we have to do a project known as Phylm, in which we analyze a scene from a movie that utilizes physics in some way and then determine, based on our findings, whether the situation is viable or not. I'm using the scene from V for Vendetta in which V throws a pair of...
I've recently been looking for information on how to describe elastic and inelastic collisions in a way that spans the full set of possibility of different levels of elasticity between objects.
In both of my physics textbooks I was only able to find quantified information on the two extremes...
A ball of clay of mass m = 0.5 kg strikes a block of mass M = 8.0 kg which slides on a frictionless table as it compresses a spring with spring constant k = 60 N/m. The initial speed of the ball of clay is v = 12 m/s. The spring is initially at its relaxed length.
W= delta K = 1/2mv^2
W...
Hey guys,
I have some questions about deep inelastic scattering. I have read a bit about it, but don't really understand the theroy behind it. I know that it is a method to be able to study quarks inside, example with an electron hitting a proton target one can be able to study the quarks of...
Homework Statement
here is a picture of the problems I am having trouble with:
http://oi55.tinypic.com/2llca50.jpg
or if that doesn't work: http://tinypic.com/view.php?pic=2llca50&s=7
Homework Equations
for question 1:
part 1: p1 + p2 = p`1 + p`2 and Distance=Time*Speed
part 2: W(f)...
Homework Statement
Consider a translating and rotating rigid disk. As it movies, it just tips the top of a rod that is initially at rest. The puck sticks to the rod, forming a rigid body that looks like a
popsicle that after the collision moves on as one rigid body. I did the calculations to...
Homework Statement
Suppose that in the figure below, script i = 0.88 m, L = 2.2 m, M = 1.2 kg, and m = 0.6 kg. The string breaks when the system's angular speed approaches the critical angular speed ωi, at which time the tension in the string is 108 N. The masses then move radially outward...
1.Use 5.98 × 1024 kg as the mass of the Earth.
A 1680 kg meteorite has a speed of 184 m/s
just before colliding head-on with the Earth.
Determine the recoil speed of the Earth.
Answer in units of m/s.
2. (m1+m2)vf=m1v1i+m2v2i
3. used the equation for a perfectly inelastic...
Homework Statement
A 20.00kg lead sphere is hanging from a hook by a thin wire 3.50m long, and is free to swing in a complete circle. Suddenly it is struck horizontally by a 5.00kg dart that embeds itself in the lead sphere. What must be the minimum initial speed of the dart so that the...
Fermi's Golden Rule for an inelastic transition states gives the probability of a transition, due to a perturbation (which is constant in a given time interval).
For 2 energy states A and B, it is proportional, among others quantities, to what I'll call E. This E is the small range of energy...
Homework Statement
Two blocks A and B are attached to a spring of force constant K and are placed on a horizontal surface. The coefficient of friction between block A and surface is zero while between block B and surface is μ. A spherical ball of mass M, radius R impinges on block A with...
Homework Statement :
A cart 'C' mass of 2 tonnes is launched at 10m/s towards Cart 'B' which is 3 tonnes and moving at 12.5m/s. The angle between their paths of motion is 90 degrees. When the 2 carts collide, they remain stuck together. what is the velocity of the stuck together cart 'CB'...
Homework Statement
Car A travels North at 35km/hr.
Car B travels East at 75 km/hr.
Mass of Car A = Mass of Car B
Cars have a perfectly inelastic collision.
Homework Equations
What is the magnitude of the velocity of the tangled mess after the collision? (km/hr)
The Attempt at a...
Homework Statement
A block of mass M is compressed a distance x against a spring which has a spring constant k.
When released, the block slides along a frictionless surface until it undergoes a completely inelastic collision with a block of mass 3M. The two blocks travel together some distance...
Homework Statement
Ball 1: 3kg, 7 m/s initially
Ball 2: 4kg, V m/s initially
Ball 3: 5kg, 10 m/s initially
Find V if the system collides inelastically and moves off at 2 m/s at 5 degrees above the horizontal.
Homework Equations
p + p = p + p (in both x and y directions)
The...
Two trucks, one twice as heavy as the other, collide head on (assume it's one dimensional and easy ;) ) and the collission is perfectly inelastic. If it was perfectly inelastic there would be no kinetic energy left, and therefore no velocity. How do the trucks manage to conserve momentum by...
Homework Statement
I can solve this problem, but I keep getting a different answer from the textbook. I just want to confirm whether I'm wrong or the textbook is wrong.
A truck of mass 2.3 x 104 kg traveling at 15 m/s [51° S of W] collides with a second truck of mass 1.2 x 104 kg. The...
Hello. I am trying to better understand relativistic inelastic collisions for objects with mass and the setup for them.
Let's say that I have two objects with different masses, one of which collides with the other, which is stationary.
Without even specifying a reference frame, can I solve...
inelastic collision...kinetic energy lost?
Homework Statement
a bullet with a mass of 6 g is fired through a 1.25kg block of wood on a frictionless surface. initial speed of the bullet is 896 m/s and speed of bullet after it passes through it is 435 m/s. what's the final velocity? how much KE...
the question is :
a 1 kg block at rest on a horizontal surface is connected to an unstreched spring with a spring constant k=1000 N/m . A 2 kg block whose speed is 6 m/s collides with 1kg block. if the two blocks stick together and move on a rough surface after collision: find
1- the final...
Homework Statement
The figure shows an overhead view of two particles sliding at constant velocity over a frictionless surface. The particles have the same mass and the same initial speed v = 4.00 m/s, and they collide where their paths intersect. An x-axis is arranged to bisect the angle...
Homework Statement
Two skaters collide and embrace, in a completely inelastic collision. Alfred, whose mass is 83 kg is originally moving east with a speed of 6.3km/hr. The other skater (m=55 kg) is originally moving north with a speed of 7.8km/hr. What is the velocity (magnitude and...
Homework Statement
Problem 1: The coefficient of restitution for steel colliding with steel is 0.95. If steel is dropped from a height ho above steel plate, to what height will the ball rebound.
Problem 2: in an elastic head on collision with a stationary target particle, a moving particle...
Homework Statement
Two identical sticky masses m are moving in
the xy-plane, with their momenta at an angle
of φ with one another. They are each moving
at the same speed v when they collide at the
origin of the coordinates and stick together.
After the collision, the masses move at an
angle...
Homework Statement
Homework Equations
The Attempt at a Solution
Here is the work that I've done. This is an even problem in my book so the answer is not given. The professor did gave the answer to this problem as .33m. The most recent answer I got is .4m which means block b...
Homework Statement
An American football game has been canceled because of bad weather in Cleveland, and two retired players are sliding like children on a frictionless ice-covered parking lot. William 'Refrigerator' Perry, mass 162 kg, is gliding to the right at 7.41 m/s, and Doug Flutie, mass...
Homework Statement
This was a test question that I got wrong and it has been bothering me so much. How is momentum conserved in an inelastic collision?
Homework Equations
p = mv
KE = (.5)m(v^2)
The Attempt at a Solution
I know that kinetic energy is not conserved because some of...
Homework Statement
An explosion breaks an object into 2 pieces, one of which has 1.5 times the mass as the other. If the explosion released 7500J, how much kinetic energy did each piece acquire?
Homework Equations
conservation of momentum and energy
The Attempt at a Solution
I...
How does a graph of an inelastic collision look like? I've searched through the web and found 2 possible answers, but obviously there's only one answer.
Homework Statement
Two ice-fishermen are driving trucks across a frozen and frictionless lake. Truck 1 (m1 = 920kg) is traveling with a speed of 16.3m/s in a direction of 57.4degrees SOUTH of EAST. Truck 2 (m2 = 930kg) is traveling due NORTH with a speed of 24.9m/s. The trucks collide and lock...
Two cars approach each other at an intersection. One car has a mass of 928.4 kg and is traveling in the negative y direction with a velocity of 21.4 m/s. The second car has a mass of 951.2 kg and is traveling in the positive x direction with a velocity of 39.5 m/s. If the collision is totally...
Homework Statement
2 vehicles made a totally inelastic head-on collision on the highway. Vehicle 1 of mass 1245kg was traveling southward at 20.0m/s. Vehicle 2 of mass 910kg was traveling northward at 26.0m/s. what was the velocity of the tangled wreckage?
Homework Equations
vf=...
Homework Statement
An 8g bullet is fired into a 250g block that is initially at rest at the edge of a table of height 1m. The bullet remains in the block, and after the impact the block lands 2m from the bottom of the table. Determine the initial speed of the bullet. [To clarify, the block...
Homework Statement
Let us consider a perfectly inelastic collision between two protons: an incident proton with mass m, kinetic energy K, and momentum magnitude p joins with an originally stationary target proton to form a single product particle of mass M. Due to conservation of momentum...
1. a mass m1=5g moving to the right at a speed of 100m/s undergoes a perfectly inelastic collision with a block of wood, m2= 100g, at rest. what is the speed just after the collision?
2. if the mass and block of wood described in question #1 are parts of a ballistic pendulum of length 2m...
Homework Statement
Object A, which has a mass m and a velocity v0i, collides head-on with object B, which has a mass 2m and a velocity 1/2v0j. Following the collision, object B has a velocity of 1/4v0i.
-Find the velocity of object A after the collision.
-Express the change in kinetic...
Homework Statement
Particle 1 of mass 230 g and speed 2.80 m/s undergoes a one-dimensional collision with stationary particle 2 of mass 400 g.
Homework Equations
What is the magnitude of the impulse on particle 1 if the collision is elastic?
What is the magnitude of the impulse on...
1. Explain why it is important for inelastic equation to occur in a plasma in order for process such as ionization and excitation to happen.
2. 1/2(m1u1^2) = 1/2(m1)(v1^2 + u1^2 sin^2(theta)) + 1/2(m2v2^2) + (delta)U3. According to the inelastic equation above, in order for ionization and...
I think I'm not understanding something about this problem. Can someone help me out?
Homework Statement
A 2.0 kg disk traveling a 3.0 m/s strikes a 1.0 kg stick of length 4.0 m that is lying flat on nearly frictionless ice. The disk strikes the endpoint of the stick, at a distance r = 2.0 m...
Hey I was wondering how you're supposed to calculate the buckling force for a short column. Is there even a way? If there is, is it accurate and how do you use it? And finally how do you know when to use it?
Homework Statement
A 6 kg object moving with a speed of 9.9 m/s collides with a 19 kg object moving with a velocity of 7.2 m/s in a direction 24* from the initial direction of motion of the 6 kg object. What is speed of the two objects after the collision if they remain stuck together...
Homework Statement
A railroad car with a mass 2.50x10^4 kg moves at 4.00 m/s. It collides and connects to 3 more cars each with the same weight as the first, they're moving 2.00 m/s. After they connect the final velocity was 2.50 m/s. How much energy is transformed into internal energy in the...
Homework Statement
A mass M attached to an end of a very long chain of mass per unit length \lambda
, is thrown vertically up with velocity v_{0}.
Show that the maximum height that M can reach is:
h=\frac{M}{\lambda}\cdot \left [ \sqrt[3]{1+\frac{3\cdot \lambda\cdot v_{o}^{2}}{2\cdot...
Hi,
If I have two 1 kg masses that are going to hit each other. Mass A is traveling at 10 ms and Mass B is at rest but I wish to cause for an Inelastic Collision. How do I achieve this?
As best I can make of it, I would require a buffer between mass A & B... and I would expect this buffer...
Homework Statement
A 10-g bullet moving at 1000 m/s strikes and passes through a 2.0 kg block initially at rest as shown in the diagram. The bullet emerges from the block with a speed of 400 m/s.
[PLAIN]http://img34.imageshack.us/img34/554/82265240.gif
To what maximum height will the...
i don't know how am i supposed to answer this Physics question..all i know its about generating a formula or something like that..here's the problem:
1.a)For an elastic, two-body head-on collisions, show that the general v2 - v1 = - (v2 - v1). That is, relative speed of recession after the...