Question
The power of a crane, which lifts a mass of 1000 kg to a height of 20 m in 10 s is : (g = 9.8 m/s^2)
NEET
Physics
Work Power Energy
2026
NEET 2026 (Cancelled)
NEET Physics Question (2026) — Solution
Options
- A. 19.6 W
- B. 39.2 W
- C. 19.6 kW
- D. 39.2 kW
Answer
C. 19.6 kW
Step-by-step solution
Given m = 1000 kg, h = 20 m, t = 10 s, g = 9.8 m/s^2. Work done by the crane is W = mgh. W = 1000 9.8 20 = 196000 J. Power is the rate of doing work, P = W t . P = 196000 10 = 19600 W. P = 19.6 kW. Answer: 19.6 kW
Related: Physics — Work Power Energy · All PYQ Banks