A rocket with an initial mass of 1000 kg is launched vertically upwards from rest under gravity. The rocket burns the fuel at the rate of 10kg s^(-1). The burnt matter is ejected vertically downwards with a speed of 2000 ms^(-1) relative to the rocket. If burning is complete after 1min, find the maximum velocity of rocket. (GIven g = 10 ms^(-2) and In 2.5 = 0.916)

A rocket with an initial mass of 1000 kg is launched vertically upward

1.	A rocket with an initial mass of 1000 kg is launched vertically upwards from rest under gravity. The rocket burns the fuel at the rate of 10kg s^(-1). The burnt matter is ejected vertically downwards with a speed of 2000 ms^(-1) relative to the rocket. If burning is complete after 1min, find the maximum velocity of rocket. (GIven g = 10 ms^(-2) and In 2.5 = 0.916)
Answer» `1232 MS^(-1)` `1000 ms^(-1)` `1423 ms^(-1)` `1523ms^(-1)` ANSWER :A