Asked by Raveen
a 0.5kgball falls into a heap of sand from a height of 10m above the sand. it comes to rest 2.5m beneath the surface of sand. what is the average force exerted by sand on the ball.
Answers
Answered by
bobpursley
energy gained from gravity= mg*(12.5)
the sand has to provide the work..
force*distance=mg*12.5
forceaverage= mass*g*12.5/2.5 N
the sand has to provide the work..
force*distance=mg*12.5
forceaverage= mass*g*12.5/2.5 N
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