A 6.510 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is µ, = 0.455 and the coefficient of kinetic friction is µ = 0.255. At time t = 0, a force F = 17.9 N is applied m µs.k horizontally to the block. State the force of friction applied to the block by the table at times t = 0 and t > 0. t = 0 17.9 N t > 0 17.9 N Consider the same situation, but this time the external force F is 36.0 N. Again, state the force of friction acting on the block at times t = 0 and t > 0. 17.9 t > 0 16.3 N t = 0 Incorrect

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Chapter1: Units, Trigonometry. And Vectors
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A 6.510 kg block of wood rests on a steel desk. The coefficient of static
friction between the block and the desk is µ. = 0.455 and the coefficient of
F
kinetic friction is µ = 0.255. At time t
0, a force F
17.9 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.
t = 0
17.9
N
t > 0
17.9
N
Consider the same situation, but this time the external force F is 36.0 N. Again, state the force of friction acting on the block at
times t =
O and t > 0.
17.9
t > 0
16.3
N
t = 0
N
Incorrect
Transcribed Image Text:A 6.510 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is µ. = 0.455 and the coefficient of F kinetic friction is µ = 0.255. At time t 0, a force F 17.9 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. t = 0 17.9 N t > 0 17.9 N Consider the same situation, but this time the external force F is 36.0 N. Again, state the force of friction acting on the block at times t = O and t > 0. 17.9 t > 0 16.3 N t = 0 N Incorrect
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