Question: In a truck-loading station at a post office a small O.200-kg Package is released from rest at point A on a track that is one-quarter

In a truck-loading station at a post office a small O.200-kg Package is released from rest at point A on a track that is one-quarter of a circle with radius 1.60 m (Fig. 7.39). The size of the package is much less than 1.60111,
so1hepackagecan be treated as a particle. It slides down the track and reaches point B with a speed of 4.80 m/s. From point B. it slides on a level surface a distance of 3.00 m to point C, where it comes to rest
(a) What is the coefficient of kinetic friction on the horizontal surface?
(b) How much work is done on 1hepackagebyfrictionasitslidesdownthecirculararcfromAtoB?

In a truck-loading station at a post office

R 11.60m m0.200 kg 3.00 m

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