A 600g model rocket is on a cart that is rolling to the right at a speed of 3.5m

Question

A 600g model rocket is on a cart that is rolling to the right at a speed of 3.5m/s . The rocket engine, when it is fired, exerts an 9.0N thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 15m above the launch point. a) At what horizontal distance left of the loop should you launch? x=? answer in appropriate units A 600g model rocket is on a cart that is rolling to the right at a speed of 3.5m/s . The rocket engine, when it is fired, exerts an 9.0N thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 15m above the launch point. a) At what horizontal distance left of the loop should you launch? x=? answer in appropriate units

Explanation / Answer

a net =( F - m g)/m = (9- .6*9.8)/.6 = 5.2 m/s^2

y = 0.5 *a *t^2===> t = sqrt (2 y a) = 2.4 s

X = Vx *t = 3.5*2.4 = 8.406 m

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