Posted by **Sara** on Wednesday, November 10, 2010 at 9:35pm.

An 8.70 kg block slides with an initial speed of 1.56 m/s up a ramp inclined at an angle of 28.4 with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.62. Use energy conservation to find the distance the block slides before coming to rest.

Can anyone help? I am totally stuck on how to solve this problem...

- Physics - Mechanics and Ocsillatory Motion -
**bobpursley**, Wednesday, November 10, 2010 at 9:53pm
well, things slow it down: 1) friction 2) the component of gravity trying to make the block slide down the plane.

Initial KE=1/2 m vi^2

work done on gravity by movement: m*g*distance/sinTheta

work done on friction: mu*mg*CosTheta*distance.

so, setting initial KE to all the others,

1/2 m vi^2= mg*distance/sinTheta+mu*mg*distance*cosTheta

solve for distance.

## Answer this Question

## Related Questions

- physics - An 8.65-kg block slides with an initial speed of 1.52 m/s up a ramp ...
- Physics - An 8.70 kg block slides with an initial speed of 1.56 m/s **down** a ...
- Physics - An 8.74-kg block slides with an initial speed of 1.52 m/s down a ramp ...
- physics - A 20 kg block slides with an initial speed of 11 m/s up a ramp ...
- College Physics - An 8.67-kg block slides with an initial speed of 1.50 m/s down...
- physics 221 - Question Part Points Submissions Used An 8.61-kg block slides with...
- Physics - Mechanics - A small block of mass 1.2 kg is launched by a compressed ...
- Physics - Mechanics - A small block of mass 1.2 kg is launched by a compressed ...
- Physics - A block of mass 2.00kg starts at rest at the top of a ramp that is ...
- Physics (Mechanics) - A 10-kg crate on a ramp is inclined at 30 degrees from the...

More Related Questions