Test SeriesFree PYQsExamsPricing

JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

A body of mass 2 kg is projected at 20 m/s at an angle of 60° above the horizontal. Power on the block due to the gravitational force at its highest point is

Answer: (D)

Solution

At the highest point, the velocity is purely horizontal, while the gravitational force is vertical. P = Fv cosθ = mg·v·cos90° = 0.

Question ID VK-153979