Three books of masses

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

Three books of masses

1\,\text{kg}

,

1.5\,\text{kg}

and

2\,\text{kg}

are placed on shelves

0.5\,\text{m}

,

1.0\,\text{m}

and

1.5\,\text{m}

high respectively. Taking the ground as the reference level and

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

, determine the total gravitational potential energy stored in the three books. (a)

50\,\text{J}

(b)

24.5\,\text{J}

(c)

49\,\text{J}

(d)

44.1\,\text{J}

Related theory

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