How much work is done against the gravitational force on a 5.00-kg briefcase when it is carried from the ground floor to the roof of the Empire State Building, a vertical climb of 380 m?
What is the change in energy of a -kg payload taken from rest at the surface of Earth and placed at rest on the surface of the Moon?
A cat’s crinkle ball toy of mass of 15 g is thrown straight up with an initial speed of 3.0 m/s. Assume in this problem that air drag is negligible.
What is the kinetic energy of the ball as it leaves the hand?
How much work is done by the gravitational force during the ball’s rise to its peak?
What is the change in the gravitational potential energy of the ball during the rise to its peak?
If the gravitational potential energy is taken to be zero at the point where the ball leaves the hand, what is the gravitational potential energy when it reaches the maximum height?
If the gravitational potential energy is taken to be zero at the maximum height the ball reaches, what would the gravitational potential energy be when it leaves the hand?
What is the maximum height the ball reaches?