Physics, 27.02.2021 09:20, jilliankoch9794
A force of 525 N is applied to a stationary couch of mass 100 kg, where μs = 0.40 and μk = 0.32. What is the acceleration of the couch
Answers: 1
(assuming that 
, the floor is horizontal, and that the external force is applied horizontally.) 
. Calculate the weight of the couch:
.
.
(coefficient of static friction) and 
(coefficient of kinetic friction.)
. In other words, while the couch isn't moving, the maximum (horizontal) external force that friction could resist would be 
.
) exceeds that of 
. Hence, the couch would start to move after the 
external force is applied.
.
.
.
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A force of 525 N is applied to a stationary couch of mass 100 kg, where μs = 0.40 and μk = 0.32. Wha...
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