10. Using a horizontal force of 200 N, we intend to move a wooden cabinet across a floor at a constant velocity. What is the friction force that will be exerted on the cabinet?
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Using a horizontal force of 200 N, we intend to move a wooden cabinet across a floor at a constant velocity. What is the friction force that will be exerted on the cabinet?
Explanation:
Here , in the question it is already given that we should move the cabinet with constant velocity,
therefore it's acceleration will be 0 [ zero]
Since, when acceleration is 0 , therefore , no net force will be applied to it.
So , Total force on body = 0
Now ,
Force on body + Friction = 0
Or,. 200 N + Friction = 0
Or,. Friction = 0 - 200
Hence , Friction = -200 N
So, as we know that Negative sign of force means that the force is applied in the opposite direction of motion of the cabinet.
Explanation:
Here , in the question it is already given that we should move the cabinet with constant velocity,
therefore it's acceleration will be 0 [ zero]
Since, when acceleration is 0 , therefore , no net force will be applied to it.
So , Total force on body = 0
Now ,
Force on body + Friction = 0
Or,. 200 N + Friction = 0
Or,. Friction = 0 - 200
Hence , Friction = -200 N
So, as we know that Negative sign of force means that the force is applied in the opposite direction of motion of the cabinet.
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