Question

Statement-1: A person walking on a horizontal road with a load on his head does no work on the lo
against gravity
Statement-2 : No work is said to be done. if directions of force and displacement of load
perpendicular to each other.
(A) Statement-1 is True, Statement-2 is True: Statement-2 is a correct explanation for Statement-1.
(B) Statement-1 is True, Statement-2 is True: Statement-2 is NOT a correct explanation for Statem
(C) Statement-1 is True. Statement-2 is False
(D) Statement-1 is False, Statement-2 is True
ection (B): Work done by A variable force​

Answer 1

Answer:

I think it is option D. As in first case angle is 180° and thus work done is not zero. second statement is correct

Answer 2

Answer: A

Explanation:W= F.s cos theta W= Fscos90° = 0