When an object is lifted, energy is transferred to it.
State the reason for this energy transfer.
State the equation for gravitational potential energy, defining all the units mentioned.
Referring to your answer to part (a), derive the expression for gravitational potential energy stated in part (b).
A ball of mass 1.2 kg is released from the top of a slope and allowed to roll to the bottom, where it stops. The initial and final positions of the ball are shown in Fig. 1.1.
Fig. 1.1.
Calculate the change in gravitational potential energy of the ball.
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