A box is lifted vertically upward at constant speed

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

Problem

2.0\,\text{kg}

box is lifted vertically upward

1.5\,\text{m}

at constant speed. Taking

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

, determine the work that must be done on the box by an external agent. (a)

0\,\text{J}

(b)

-29\,\text{J}

(c)

29\,\text{J}

(d)

15\,\text{J}