Question

what is the work done by a weightlifter when you hold a weight of 100 kg on the shoulder for one minute​

Answer 1

Answer:

Zero

Explanation:

Work done will be zero.

Becuase Displacement and Force are perpendicular to each other.

Hence angle forms is 90

W = F S cos(theta)

W = F S cos(90)

W = F S (0). cos90 is 0

Hence work done is Zero

Answer 2

Answer:

0

Explanation:

Work done = Force* displacement

Here nothing is moving i.e. ni displacement takes place, so, Displacement = 0

Hence, Work Done = Force*0

Work Done = 0