Incline Definition and 976 Threads

Homework Statement To push a 33 kg crate up a frictionless incline, angled at 15° to the horizontal, a worker exerts a force of 100.4 N, parallel to the incline. As the crate slides 1.50 m, (a)how much work is done on the crate by the worker's applied force? (b) How much work is done on the...

Homework Statement Car is driving up a slope, 16o to the horizontal, trying to accelerate as much as possible. Static friction coefficient = 0.9. Kinetic Friction coefficient = 0.8. Find the magnitude of the maximum possible acceleration (assuming a powerful enough engine). Homework Equations...

Homework Statement A block of mass m1 is attached to the axle of a uniform solid cylinder of mass m2 and radius R by massless strings. The two accelerate down a slope that makes an angle \theta with the horizontal. The cylinder rolls without slipping and the block slides with coefficient of...

Homework Statement What power is needed to drive a car at 60 km/h up a 10% grade. mass=1800kg v=60km/h theta=5.7106 g= 9.81 m/s^2 Homework Equations P = Fv P_ave= W/T w=mg F=maThe Attempt at a Solution I drew my diagram and FBD. Since Fy=mAy=0.. 0=N-sin(5.7106) N=1755.2477 I know that...

Homework Statement In the figure below, a block of mass m = 11 kg is released from rest on a frictionless incline angled of angle θ = 30°. Below the block is a spring that can be compressed 2.0 cm by a force of 270 N. The block momentarily stops when it compresses the spring by 5.4 cm...

A uniform disk of mass m and radius R rolls without slipping down a ramp inclined at angle q to the horizontal. Using the angle f through which it turns as a generalised coordinate, write the lagrangian, and then the Hamiltonian. Write out and solve Hamilton’s equations of motion. Ok, so...

Homework Statement Two blocks, A and B (with mass 20.0 kg and 40.0 kg , respectively), are connected by a string, as shown in Figure P5.64. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is μk = 0.290. Determine the change...

Homework Statement perpendicular weight is given, Parallel weight is given Need to find actual weight and angle of incline Homework Equations The Attempt at a Solution

we are conducting a lab where measurement of force on an incline is necessary. the mass which is pulled is a small concrete block (15.8 kg) on a wooden ramp. as the ramp is increased the force changes (increasing) which is expected. last we need to look at the coefficient of friction at...

Homework Statement A spring is mounted at an angle of 29 degrees on a frictionless incline as illustrated in the figure below. The spring is compressed to 15 cm where it is allowed to propel a mass of 4.6 kg up the incline...

Homework Statement A mass of 2000kg is on a 30 degree incline the mass is in static equilibrium a force F is applied to the mass (uphill) from the front of the mass the front wheel is 1m away from the centre of mass the rear wheel is 2m away from the centre of mass the center of mass is...

Homework Statement A 3812.0 kg truck is parked on a 18.1° slope. What is the friction force on the truck? Homework Equations The Attempt at a Solution So i set up a triangle with and then used: weight of truck= (9.8 m/s^2 *3812 Kg) = 37367.6 N sin(18.1) = (37367.6 N) /(-Ff) Ff =...

1. a block is pushed up a 35 degree incline (no friction) by an applied force. If F= 20N and m= 2.0kg, what is the magnitude of the resulting acceleration of the block? 2. not sure? f=ma 3. don't know where to start. It has been a long time since physics

This has been driving me crazy because I thought I knew what I was doing, but the book says I'm wrong. I even worked backwards the answer in the book and it makes no sense to me. Please work this out and tell me what I'm doing wrong. Homework Statement A block of mass m1 = 250g is at rest on...

Homework Statement A 2kg mass starts from rest and slides down an inclined plane 8.0X10m long in 0.50s. What net force is acting on the mass along the incline? Homework Equations The Attempt at a Solution I don't even know where to begin.

Homework Statement A horizontal force of magnitude F = 197 N is used to push a box of mass m = 5 kg from rest a distance d = 13 m up a frictionless incline with a slope q = 34°. Homework Equations How much work is done on the box by the gravitational force during this same displacement...

Homework Statement Find the tension in each cord (three cords) in the figure if the weight of the suspended object is 250 N. There are two systems System 1 Cord A is 30 Degrees below horizontal on the left, Cord B is 45 degrees below Horizontal on the right. Cord C connects the other two...

Homework Statement block 1 lying on an inclined plane is connected to block 2 by a cord passing over a pulley. the coefficient of kinetic friction between block 1 and the plane is .21 and block 1 and 2 are 2.6 kg. As block 2 moves down, determine the magnitude of the acceleration of block 1...

Homework Statement A 725 gm block slides down an inclined plane that makes an angle of 30° with the horizontal. It accelerates at 1.5 m/s2. a) Find the magnitude and direction of the total force exerted on the block by the plane. For the direction, give the angle as measured...

Homework Statement Two masses M1 = 2.5kg and M2 = 4.0kg are on inclines and are connected together by a string . The coefficient of kinetic friction between each mass and its incline is Uk = 0.30. If moves up, and moves down, determine their acceleration. Homework Equations...

Hello. I am new to this forum. I am a chemist. Physics is not my strength. Recently, I got a speeding ticket and I have to do some simple calculations in order to silence my mind. The problem is the following: A car (m = 1498.95 kg) is constantly accelerating uphill (15 degrees incline) from...

Spring Energy--a block slides down a frictionless incline plane A block of mass m = 13 kg is released from rest on a frictionless incline angled of angle θ = 30°. Below the block is a spring that can be compressed 2.0 cm by a force of 270 N. The block momentarily stops when it compresses the...

Homework Statement A dis of mass (m) and radius (r) with I=(1/2)(m)(r^2) is rolling down an incline dragging with it a mass (m) attached with a light rod to a bearing at the center of the disc. The friction coefficients are the same for both masses, Uk and Us. Determine the linear...

"If two balls, of different weight where put on the same incline, would they roll down together? Explain using Newtons laws." I tried it, and as I thought, the heavy one went faster, but why? A=F/m ...but force is said to be "mass x gravity (9.8N) x sin (the angle)" but divided by...

Homework Statement A ball rolls up a straight incline. The dots in the diagram represent the position of the ball every 4 seconds. (The fourth dot is not intended to represent the turnaround point; the ball might still be on the way up at that point.) The instantaneous velocities at the...

Homework Statement A ball rolls up a straight incline. The dots in the diagram represent the position of the ball every 4 seconds. (The fourth dot is not intended to represent the turnaround point; the ball might still be on the way up at that point.) The instantaneous velocities at the...

Homework Statement 3.0-kg block slides on a frictionless 37° incline plane. A vertical force of 15 N is applied to the block. The acceleration of the block is? Homework Equations m*g*sin() The Attempt at a Solution 3*9.8*sin(37) - 15 = 2.7

A block of mass M is being pulled up an inclined plane at a constant speed, by an attached rope that exerts a tension T. The block is pulled a distance L. The plane makes an angle θ with the horizontal, and the coefficient of kinetic friction between the block and the incline is μk. a.)...

Homework Statement A board is inclined at an angle of 17.5 degrees. The coefficient of friction between a 15.0 kilogram block and the board is .085. what will be the speed of the block if it slides down the board a distance of 4.0 meters, starting from rest?

Homework Statement A ball of mass M and radius R starts from rest at a height of 50 cm and rolls down a slope. What is the linear speed of the ball when it leaves the incline? Homework Equations The Attempt at a Solution I just need a relevant starting hint. I should be able to do...

Homework Statement Find the acceleration of block A when moving downward Theta=40 degrees A=103N B=31N Static coefficient = 0.56 Kinetic coefficient = 0.25 Homework Equations F=ma Normal Force * Kinetic coefficient = Friction Force The Attempt at a Solution From 103/9.8 I get a mass of...

The problem states that a 3900kg trailer is pulled by a tractor up a 16 degree incline with a steady speed of 3.0m\s. I am asked what force the tractor exerts on the trailer. I said that the force was equal to the (W)(sin)16degrees, i get the right answer in the back of the book but i...

A shopper pushes a 7.5kg shopping cart up a 13 degree incline. I need to find the force required to give the cart an acceleration of 1.41m\s\s up the incline. ive tried breaking the weight, force and acceleration into components but i just end up getting more confused...any help on...

The problem is modeling a solid ball or radius R rolling down an incline of angle Theta. Note that I am an Electrical Engineer who is somewhat flaky with rotational concepts (but not completely useless :p). If the ball was rolling down a road (or any solid, flat surface), I get the following...

Homework Statement A cylinder with radius R, length l, and density ro has a 10 turn coil of wire wrapped lengthwise. The cylinder is placed on the ramp tilted at an angle theta, with edge of the coil parallel to the ramp's slope. A uniform mag. field points straight up. For what loop...

Homework Statement An inclined plane that makes an angle of 28° to the horizontal is mounted on wheels. A small block of mass m = 2 kg rests on the plane, held there by a coefficient of static friction µ = 0.66. The plane is accelerating to the right, as shown. What is the minimum...

Homework Statement A ball has a diameter of 25.4 cm and a mass of 566 g. It can be approximated as a hollow spherical shell. Starting at rest, how long will it take to roll 10 m down an an incline of 30 degrees if it doesn't slip? Homework Equations Energy conservation I = 2/3 mr^2...

Homework Statement a book restson the shelf of a bookcase. the reaction force to the force of gravity acting on the book is? A.)the weight of the book B.)none of these C.)the force of the shelf holding the book up D.)the frictional force between the book and shelf E.)the force exerted by...

Objects of Masss m1= 4kg and m2 = 9kg are connected by a light string that passes over a frictionless pulley. Object m1 = is held at rest on the floor, and m2 rests on a fixed incline of 40 degrees. The objects are released from rest, and m2 slides 1 meter down the <b>rough</b> incline in 4...

Homework Statement [/b] Objects of Masss m1= 4kg and m2 = 9kg are connected by a light string that passes over a frictionless pulley. Object m1 = is held at rest on the floor, and m2 rests on a fixed incline of 40 degrees. The objects are released from rest, and m2 slides 1 meter down the...

Homework Statement After a bobsled race, the sled and riders have been partially slowed down up in an icy incline, but they need to be brought to a stop. This happens on a portion of track inclined at 30 degrees that has a coefficient of kinetic friction of 0.60. The sled enters the incline at...

Can someone tell me if I'm doing this problem right? Homework Statement Here is the picture of the problem: http://i210.photobucket.com/albums/bb23/Kyashii628/block.jpg In my FBD, I have Fg pointing down, Fgy perpendicular to the incline and pointing down, Fgx parallel to incline pointing...

Homework Statement A 2.1 kg is released from rest from the bottom of a 45 degree inclined ramp. The package is attached to an ideal spring K = 35 N/m that is attached to the top of the incline causing the package to be launched up the incline. The coefficients of friction between the package...

This is just a basic incline plane problem. I know how to do it, but these sign conventions and vector issues are what confuse me. I know that I align my coordinate system so the x-axis is basically the surface the block is resting/moving on, the net weight vector of the block will be directed...

Homework Statement If a curve with a radius of 88m is perfectly banked for a car traveling 75kn/h, what must be the coefficient of static friction for a car not to skid when traveling at 95 km/hHomework Equations F=m(aR) F(Normal) x sin0 = m(v^2/r) The Attempt at a Solution I've asked my...

Consider a frictionless track ABC as shown in Figure P8.23. A block of mass m1 = 8.00 kg is released from A. It makes a head-on elastic collision at B with a block having a mass of m2 = 14.0 kg that is initially at rest. Calculate the maximum height to which m1 rises after the collision...

Homework Statement A 50 kg box is being pushed up an incline of 25 degrees, to a total height of 45 m. Kinetic friction between the box and the incline has a mew of .4. a) What is the work done by gravity? b)What is the work done by friction? c) What is the work done by the person...

A ball of mass 2.10 kg and radius 0.145 m is released from rest on a plane inclined at an angle theta=38.0 degrees with respect to the horizontal. How fast is the ball moving (in m/s) after it has rolled a distance d=1.50 m? Assume that the ball rolls without slipping, and that its moment of...

Homework Statement This was a lab task in which we are asked: Determine the static and dynamic coefficients of friction for a block of wood of mass 82.2grams on a plank of wood. PART A: To determine the static coefficient we found the angle at which point the block just started to...

http://img530.imageshack.us/my.php?image=hrwc5f51km4.gif A 1.7 kg mass, m2, on a 30.5° incline is connected to a 6.4 kg mass, m1, on a horizontal surface. The surfaces and the pulley are frictionless. If F = 13.3 N, what is the magnitude of the tension in the connecting cord? I've tried solving...