A large model rocket engine can produce a thrust of 12.0 Nupon ignition. This en

Question

A large model rocket engine can produce a thrust of 12.0 Nupon ignition. This engine is part of a rocket with a total mass of.288 kg when launched. What is the net force that us acting on themodel rocket just after it leaves the ground? I don't understand what formulas to use, or how to use them.Please help! A large model rocket engine can produce a thrust of 12.0 Nupon ignition. This engine is part of a rocket with a total mass of.288 kg when launched. What is the net force that us acting on themodel rocket just after it leaves the ground? I don't understand what formulas to use, or how to use them.Please help!

Explanation / Answer

Given that the thrust on the rocket is Ft = 12.0 N mass of rocket is m = 0.288 kg ------------------------------------------------------ Thrust force acting upwards and weight acting downwards,       Net force on the rocket is F = Ft -mg                                               = 12.0 N -0.288kg*9.8m/s2                                               = 9.1 N

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