Question

A rocket is moving in space with a velocity of 50 km per second.it releases its engine for 25 second and velocity is reduced to 45 km per second,find the distance traveled by the rocket in 15 seconds,from the time of engine departs from rocket

Answer 1

50kmX25sec=1250km
45kmX15 sec=675km
the distant travel by rocket is 1925 kms