Q. A boy throws a 1.5 kg rock upward. To do so the boy applies a constant 38.5 N force upwards on the rock from point a to point b. after that the rock continues upward to its highest height at point c.
Compute the work that the boy performs from point a to point b.
Compute the work that the force of gravity performs from point a to point b.
What is the total work completed on mass?