A jet engine develops 1.1 × 10⁵ N of thrust in moving an airplane forward at a speed of 850 km/h.What is the power developed by the engine? A) 935 kW B) 259.7 MW C) 26 MW D) 31 MW E) 21 MW

Question

Quizplus · Accepted Answer

Power is given by:
Power = Force × Velocity

We have the force given as 1.1 × 10¹⁵ N and velocity as 850 km/h. We need to convert velocity to m/s as the unit of force is in Newtons.

850 km/h = 850 × 1000 m/3600 s = 236 m/s

Substituting the values, we get:
Power = 1.1 × 10¹⁵ N × 236 m/s
Power = 2.596 × 10¹⁰ W
Power = 26 MW

Hence, the answer is choice C, 26 MW.

A Jet Engine Develops 1