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Question
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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Solution
- If the net external force on the cabinet is zero, it will move at a constant velocity.
- Because a horizontal force of 200 N acts on the cabinet in the forward direction, a frictional force of 200 N will act on it, resulting in a net external force of zero.
- Thus, a frictional force of 200 N will be applied to the cabinet.
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