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10 Nov 2019
Suppose a child on a sled has just reached the bottom of 8th-streethill after sliding down
the snowâcovered slope. The mass of sled plus child is 20 kg, andthe coefficient of friction
between sled and snow is 0.08. The sled is travelling 10.0 m/s whenit reaches the level street
at the bottom of the hill. (A) Draw a free-body diagram showing allforces on the sled &
child. (Consider them a single object.) (B) Calculate the force offriction on the sled.
(C) Calculate the acceleration of the sled. [-0.78 m/s2]
(D) How far will the sled travel after reaching the bottom of thehill? [64 m]
Suppose a child on a sled has just reached the bottom of 8th-streethill after sliding down
the snowâcovered slope. The mass of sled plus child is 20 kg, andthe coefficient of friction
between sled and snow is 0.08. The sled is travelling 10.0 m/s whenit reaches the level street
at the bottom of the hill. (A) Draw a free-body diagram showing allforces on the sled &
child. (Consider them a single object.) (B) Calculate the force offriction on the sled.
(C) Calculate the acceleration of the sled. [-0.78 m/s2]
(D) How far will the sled travel after reaching the bottom of thehill? [64 m]
Beverley SmithLv2
10 Nov 2019
