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An eraser weighing 2N is pressed against...

An eraser weighing 2N is pressed against the black board with a force of 5N. If the coefficient of friction is 0.4. How much force parallel to the black board is required to slide the eraser upwards

A

2N

B

2.8 N

C

4N

D

4.8 N

Text Solution

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The correct Answer is:
C
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An eraser weighing 2 N is pressed against the black board with a force of 5 N. If the coefficient of friction is 0.4. How much force parallel to the black board is required to slide the eraser upwards.

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