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Q. A 91N grocery cart is pushed 12m along an aisle by a shopper who exerts a constant horizontal force of 40N. If all frictional forces are neglected and cart starts from rest, what is the grocery cart's final speed?

Q. A 72 kg man in a 5-kg chair tilts back so that all weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area with the radius of 1.0 cm, and find out the pressure exerted on the floor by each leg.

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Category:- Physics
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