A block of mass M = 2.5 kg is released from rest and slides down an incline that makes an angle q = 31° with the horizontal. The coefficient of kinetic friction between the block and the incline is µk = 0.2.(adsbygoogle = window.adsbygoogle || []).push({});

a) What is the acceleration of the block down the inclined plane?

I got a = 3.37

The next four questions are concerned with what has happened after the block slides a distance d = 6 m down the plane.

b) How much work was done on the block by the Earth's gravitational force?

I got Wg = 75.7878

c) How much energy was expended in overcoming the frictional force (thus producing heat, etc.)?

d) What is the kinetic energy of the block?

e) The plane exerts a normal force (perpendicular to its surface) on the block. How much work was done on the block by this normal force?

Easy that's 0.

I just can't get how to get E-heat or KE?

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Mass on Inclined Plane with Friction

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