Question

A boy exerts a force of 150 N while pulling a hand cart at a speed of 3 ms⁻¹. The power exerted by the body is:

विकल्प

• 50 W

• 150 W

• 1500 W

• 450 W

Answer 1

450 W

Explanation:

P = F × v

= 150 × 3

= 450 W