Question

A man carrying a suitcase in his hand climbs up the stairs. The work done by the man is:

• A. positive
• B. negative
• C. zero
• D. none of the above

Answer 1

The correct option is A

positive

1. The displacement of the box is in the direction of force exerted by the man on the box - upwards.
2. Hence, the product of the force and displacement is positive. So, the work done is positive.

Hence, the correct answer is option (A) i.e. positive