Question

Starting from rest, a 4-kg block slides 10m down a frictionless 30° incline.

Determine the work done on the block by the force of gravity, the normal force, the net force, and the KE of the block at the end of the 10m slide​

Answer 1

The work done on the block by the force of gravity is 392.4 J. The work done by the normal force is zero. The work done by the net force is equal to the change in kinetic energy of the block. At the end of the slide, the block has a kinetic energy of (1/2)mv^2, where v is the speed of the block.

Step-by-step explanation: