A jet engine develops 1.0 x 10 N of thrust in moving an airplane forward at a speed of 900 Km/h. What is the instantaneous power developed by the engine ? a. 500KW b. 10MW c. 25 MW d. 50 MW

 Q :- A jet engine develops 100000 N of thrust in moving an airplane forward at a speed of 900 Km/h. What is the instantaneous power developed by the engine ?

a. 500KW

b. 10MW

c. 25 MW

d. 50 MW

ANSWER :- 

                         

Given , 

 Thrust , F =  100000 N

Velocity of jet  , V = 900 Km/Hr = 250 m/s

so,    we know that 

Power produced , P =   FxV

                            P  =  100000x250  = 25000000 =  25 MW 

Hence, power produce by the jet is 25 MW 

So, option " C" is correct