Physics

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}

-29\,\text{J}

29\,\text{J}

15\,\text{J}