JEE Main Physics question
An engine develops 10 kW of power. How much time will it take to lift a mass of 200 kg to a height of 40 m? (g = 10 m/sec²)
Answer: (C)
Solution
t = mgh/P = (200×10×40)/10000 = 80000/10000 = 8 sec.
An engine develops 10 kW of power. How much time will it take to lift a mass of 200 kg to a height of 40 m? (g = 10 m/sec²)
t = mgh/P = (200×10×40)/10000 = 80000/10000 = 8 sec.