Physics

Problem

3\,\text{kg}

suitcase is first placed on a trolley platform

1.2\,\text{m}

high and later lifted onto a conveyor belt

3.6\,\text{m}

above the floor. With

g = 9.8\,\text{m\,s}^{-2}

, how much additional gravitational potential energy does the suitcase gain when moved from the trolley platform to the conveyor belt? a)

105.8\,\text{J}

70.6\,\text{J}

35.3\,\text{J}

72.0\,\text{J}