JEE Main Physics question
An electric motor creates a tension of 9000 N in a hoisting cable and reels it in at the rate of 2 ms⁻¹. The power of the electric motor is
Answer: (A)
Solution
P = Fv = 9000×2 = 18000 W = 18 kW.
An electric motor creates a tension of 9000 N in a hoisting cable and reels it in at the rate of 2 ms⁻¹. The power of the electric motor is
P = Fv = 9000×2 = 18000 W = 18 kW.