Topic: Engineering Mechanics
A truck hauls a trailer at 60 km/hour when exerting a steady pull of 600N. If the work is done for 40 minutes, the power required is
- A. 6 kW
- B. 4 kW
- C. 2.4 kW
- D. 10 kW
Answer: D. 10 kW
Explanation: Velocity V = 60 * (5/18) = 50/3 m/s. Power P = F * V = 600 * (50/3) = 10000 W = 10 kW.