# physics

A spring (k=200N/m) is fixed at the top of a frictionless plane inclined at an angle of 40 degrees. A 1 kg block is projected up the plane from an initial position that is distance d=0.60m from the end of the relaxed spring, with an initial kinetic energy of 16J. A) What is the kinetic energy of the block at the instant it has compressed the spring 0.20m? B) With what kinetic energy must the block be projected up the plane if it is to stop momentarily when it has compressed the spring by 0.40m?

1. 👍 0
2. 👎 0
3. 👁 419
1. Initial KE+Intial PE=finalKE+finalPE
16J+1/2 k .6^2=finalke+ 1/2k .2^2

solve for finalKE

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

A spring (k=200N/m) is fixed at the top of a frictionless plane inclined at an angle of 40 degrees. A 1 kg block is projected up the plane from an initial position that is distance d=0.60m from the end of the relaxed spring, with

asked by James on July 27, 2010
2. ### Mechanics for A-level

An object of mass 50kg rests on a rough plane inclined at an angle z to the horizontal. It is supported in this position by a light string parallel to the plane which is attached to the object and fixed to a point at the top of

asked by Bob on April 5, 2012

Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The inclined plane is inclined at an angle of 37

asked by Jared on November 20, 2013
4. ### physics

Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The inclined plane is inclined at an angle of 37

asked by Haff on November 19, 2013
5. ### physics

the inclined plane is 30* from the ground a) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be lifted using the inclined plane. What is the minimum applied force for this job? c) Suppose that an

asked by sasha on January 21, 2009
1. ### Physics

the inclined plane is 30* from the ground a) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be lifted using the inclined plane. What is the minimum applied force for this job? c) Suppose that an

asked by lulu on January 21, 2009
2. ### Physics

A light, ideal spring with a spring constant k = 100 N/m and uncompressed length L = 0.30 m is mounted to the fixed end of a frictionless plane inclined at an angle θ = 30.0° as shown above. Then a mass M 0.300 kg is affixed to

asked by Jonah on October 22, 2017
3. ### Physics - Mechanics

A small block of mass 1.2 kg is launched by a compressed spring with force constant k=600 N/m. The initial compression of the spring is 0.15 m. The block slides along a horizontal frictionless surface and then up an inclined plane

asked by Anonymous on March 14, 2015
4. ### Physics - Mechanics

A small block of mass 1.2 kg is launched by a compressed spring with force constant k=600 N/m. The initial compression of the spring is 0.15 m. The block slides along a horizontal frictionless surface and then up an inclined plane

asked by Anonymous on March 13, 2015
5. ### physics

An object of mass M = 4 kg slides from rest a distance d = 2 m down a frictionless inclined plane where it encounters a spring. It compresses the spring a distance D = 1.2 m before stopping. The inclined plane makes an angle q =

asked by Mel on March 11, 2012

More Similar Questions