A rocket of initial mass `m_0` has a mass `m_0(1-t//3)` at time t. The rocket is lauched from rest
Channel: Doubtnut
Date: 2020-07-12

A rocket of initial mass `m_0` has a mass `m_0(1-t//3)` at time t. The rocket is lauched from rest vertically upwards under gravity and expels burnt fuel at a speed u relative to the rocket vertically downward. Find the speed of rocket at `t=1`.