A jet engine develops 1.50 × 10⁵ N of thrust in moving an airplane forward at a speed of 900 km/h.What is the power developed by the engine? A)1 350 kW B)380 MW C)37.5 MW D)42.5 MW E)32.5 MW

Question

Quizplus · Accepted Answer

We can use the formula for power: 
Power = Thrust x Velocity 
Converting 900 km/h to m/s: 
900 km/h x 1000 m/km / 3600 s/h = 250 m/s 
Plugging in the numbers: 
Power = (1.50 x 10^11 N) x (250 m/s) 
Power = 3.75 x 10^13 W or 37.5 MW

A Jet Engine Develops 1