Work-Energy Exercise

Question 1:

Calculate the gravitational potential energy of a 2000-kg boulder raised 7 m above ground level.
State your assumption about g.

Calculate the kinetic energy of a 2-kg book tossed across the room at a speed of 4 m/s.

Calculate the kinetic energy of a 1000-kg car moving at 20 m/s.

Calculate the work done when a 2-kg block of ice is moved from rest to a speed of 5 m /s.

For more details, please contact me here.