Question
A football player is running at a speed of 9m/s hits the goalpost and comes to a stop in 0.050 sec. Calculate his acceleration and compare it with that of gravity.
Answers
bobpursley
force*time=mass*changevelocity.
calcuate force
then, from F=ma, a=Force/mass
calcuate force
then, from F=ma, a=Force/mass
-180 m/s
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