Solve each problem. Write your answer on the space provided.
1. How much is done by Mila when she exerted a 25N force in lifting her bag to a
height of 2m?
2. A 10kg block of wood is pulled across a level ground by fore of 15N applied at
an angle of 30 degree from the horizontal. How much work is done, if it is moved
to a distance of 3m?
(Note: F applied = 15N x cos 30 degree, cos 30 degree = 0.5)
3. What is the work done by a boy in pushing the wall of the classroom, if he
applied a force of 30N?
4. A man weighing 500N walks a flight of stairs 10m high. How much work is
done by the man?
5. A sack of rice with a mass of 120kg is lifted by a laborer in a 15m high
building. Compute the amount of work done by the laborer.