A porter walks along a level road while carrying a suitcase at arm’s length

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

Problem

A porter walks

25\,\text{m}

along a level road while carrying a suitcase at arm’s length. What is the work done by the gravitational force on the suitcase during this walk? (a)

+mg \times 25\,\text{J}

(b)

0\,\text{J}

(c)

-mg \times 25\,\text{J}

(d) Cannot be determined because the mass of the suitcase is not given