A 5.510 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is u, = 0.605 and the coefficient of kinetic friction is µk = 0.205. At time t = 0, a force F = 20.1 N is applied m horizontally to the block. State the force of friction applied to the block by Us,k the table at times t = 0 and t > 0. 32.67 11.07 t = 0 N t > 0 N Incorrect Incorrect Consider the same situation, but this time the external force F is 40.6 N. Again, state the force of friction acting on the block at times t = 0 and t > 0. t = 0 32.67 N t > 0 11.07 N

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A 5.510 kg block of wood rests on a steel desk. The coefficient of static
friction between the block and the desk is u, = 0.605 and the coefficient of
kinetic friction is µk = 0.205. At time t = 0, a force F = 20.1 N is applied
m
horizontally to the block. State the force of friction applied to the block by
Us,k
the table at times t = 0 and t > 0.
32.67
11.07
t = 0
N
t > 0
N
Incorrect
Incorrect
Consider the same situation, but this time the external force F is 40.6 N. Again, state the force of friction acting on the block at
times t = 0 and t > 0.
t = 0
32.67
N
t > 0
11.07
N
Transcribed Image Text:A 5.510 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is u, = 0.605 and the coefficient of kinetic friction is µk = 0.205. At time t = 0, a force F = 20.1 N is applied m horizontally to the block. State the force of friction applied to the block by Us,k the table at times t = 0 and t > 0. 32.67 11.07 t = 0 N t > 0 N Incorrect Incorrect Consider the same situation, but this time the external force F is 40.6 N. Again, state the force of friction acting on the block at times t = 0 and t > 0. t = 0 32.67 N t > 0 11.07 N
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