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aziiri
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Homework Statement
A solid object of 6kg was moving at a constant speed of 10m/s towards a man who try to stop it.
If the man stopped the train in 30 seconds, find the force F that the man exerted on the object.
The Attempt at a Solution
The only force acting on the object is the man's force so : ma=-F, this means that : v(t)=v(0)-F t /m.
We know that v(30)=0, which means that : F= m*v(0)/30 = 2.
Is my solution correct ? (I don't have anyone to ask him so I'm asking you).