Question

A rocket with a lift off mass 3.5*10000 kg is blasted upwards with an iniyial acceleation of 10 m/s2. Then the initial thrust of the blast is

Answer 1

If anyone knows the answers, then, Plz help me out in solving them... 1.A rocket has an initial mass of 20x1000. If it is to blast off with an initial acceleration of 4m/s2, what is the initial thrust needed? (g=10m/s2) 2.when a bullet is fired at a target, its velocity decreases by half after penetrating