JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

A truck of mass 30,000 kg moves up an inclined plane of slope 1 in 100 at a speed of 30 kmph. The power of the truck is (Given g = 10 ms⁻²)

Answer: (A)

Solution

P = mg sinθ × v = 30000 × 10 × (1/100) × (30 × 5/18) = 3000 × 8.33 = 25000 W = 25 kW.

Question ID VK-154002