Asked by jeniffer

When a rocket is 3km above the ground,it has an upward velocity of 10 m.s^-1.A booster rockect is fired downward,resulting in a net force of 6000 N being exerted upward on the shuttle.The time it takes the booster to leave the shuttle after being fired is 2,5 seconds.if the mass of the shuttle is 2000 kg,

calculate the velocity of the shuttle immediately afta the booster is fired
Answered by Damon
I guess net force includes gravity down so

Force * time = change of momentum
6000 * 2.5 = 2000 (v-10)
Answered by PhysicsForums
Where is your attempted solution? I refuse to help you until you post it
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