A block is pulled along a rough level surface at constant speed by the force .The figure shows the free-body diagram for the block. represents the normal force on the block; and represents the force of kinetic friction.
-If the coefficient of kinetic friction, , between the block and the surface is 0.30 and the magnitude of the frictional force is 80.0 N, what is the weight of the block?
A)1.6 N
B)4.0 N
C)160 N
D)270 N
E)410 N

Question

A block is pulled along a rough level surface at constant speed by the force  .The figure shows the free-body diagram for the block.  represents the normal force on the block; and  represents the force of kinetic friction. 
-If the coefficient of kinetic friction,  , between the block and the surface is 0.30 and the magnitude of the frictional force is 80.0 N, what is the weight of the block?
A)1.6 N 
B)4.0 N 
C)160 N 
D)270 N 
E)410 N

Quizplus · Accepted Answer

The Answer of A block is pulled along a rough level surface at constant speed by the force  .The figure shows the free-body diagram for the block.  represents the normal force on the block; and  represents the force of kinetic friction. 
-If the coefficient of kinetic friction,  , between the block and the surface is 0.30 and the magnitude of the frictional force is 80.0 N, what is the weight of the block?
A)1.6 N 
B)4.0 N 
C)160 N 
D)270 N 
E)410 N

A Block Is Pulled Along a Rough Level Surface at Constant