A train of mass 4000 metric tons is moving with a velocity of 18 KMPH. With the application of a force, its velocites changes to varphi in 2 minutes. If the power of the engine is 10 MW, the value of 'varphi' is (in KMPH)

A train of mass 4000 metric tons is moving with a velocity of 18 KMPH.

1.	A train of mass 4000 metric tons is moving with a velocity of 18 KMPH. With the application of a force, its velocites changes to varphi in 2 minutes. If the power of the engine is 10 MW, the value of 'varphi' is (in KMPH)
Answer» 72 90 36 54 Answer :B