# Physics

posted by .

A 75 kg box slides down a 25 degree ramp with an acceleration of 3.60 meters per second squared. Find the coefficient of kenetic friction between the box and the ramp. What acceleration would a 175 kg box have on this ramp?

• Physics -

I have the first part of the question (0.061). I need the second part.

• Physics -

forcenetdown= mass*a
mgSinTheta-mu*mg*cosTheta=mass*a

but notice mass divides out, so acceleration is independent of mass, if it is moving.

• Physics -

yes

## Similar Questions

1. ### bob Joe

38. A box slides down a 30.0 degree ramp with an acceleration of 1.20 m/s^2. Determine the coefficient of kinetic friction between the box and the ramp. I have no idea how to do this with only knowing the aceleration and the angle. …
2. ### physics

A 75 kg box slides down a 25o ramp with an acceleration of 3.6 m/s2. Find the coefficient of kinetic friction between the box and the ramp.
3. ### Physics

A 75 kg box slides down a 25.0 degree ramp with an acceleration of 3.60 m/s^2. Find coefficient between the box and the ramp. What acceleration would a 175 kg box have on this ramp?
4. ### Physics

I'm so confused on how to find mu. A 68 kg box slides down a 27 degree ramp with an acceleration of 3.10 m/s squared. The acceleration due to gravity is 9.81 m/s squared. It wants me to find mu between the box and the ramp but I don't …
5. ### physics

A box slides down a 33° ramp with an acceleration of 1.38 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.
6. ### Physics

A box, with a weight of mg = 25 N, is placed at the top of a ramp and released from rest. The ramp measures 4.40 meters horizontally and 3.50 meters vertically. The box accelerates down the incline, attaining a kinetic energy at the …
7. ### physics

A 31 kg box slides down a 33.0 ramp with an acceleration of 1.30 m/s2. The acceleration of gravity is 9.81 m/s2 . Find the coefficient of kinetic friction between the box and the ramp.
8. ### physics

A box slides down a 28° ramp with an acceleration of 0.98 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.
9. ### Physics

A box slides down a 27.7° ramp with an acceleration of 1.25 m/s². The acceleration of gravity is 9.8 m/s². Determine the coefficient of kinetic friction between the box and the ramp.
10. ### physics

A box slides down a 30.0 degree ramp with an acceleration of 1.25m/s². Determine the coefficient of Kinetic friction between the box and the ramp. I'm not sure to work it out I draw a picture to see if it would help me but I'm still …

More Similar Questions