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Physics, 17.12.2019 19:31 yasmincastor
Ashopper in a supermarket pushes a cart with a force of 35ndirected at an angle of 25 degree below the horizontal. the forceis just sufficient to overcome various frictional forces, so thecart moves at constant speed.
(a) find the work done by the shopper as she moves down a 50.0mlength aisle.
(b) what is the net work done on the cart? why?
(c) the shopper goes down the next aisle, pushing horizontally andmaintaining the same speed as before. if the work don't byfrictional force doesn't chance, would the shopper's applied forcebe larger, smaller, or the same? what about the work done on thecart by the shopper?
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