An eraser of weight 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
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31
As, F=w+uf=2+[0.4*5]=2+2=4N
tilak24:
how f=uF
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5
Answer:
4N is the answer I think so
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