A block of 100 N is sliding down with constant velocity on an inclined plane. The angle of inclination is 7o. Calculate the force of the friction on the block. (sin 7o = 0.12)
A
0.0012 N
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B
0.07 N
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C
12 N
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D
70 N
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E
100 N
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Solution
The correct option is C 12 N
Given : W=100 N
As the block slides down at constant velocity, thus net force on the block along the inclined surface is zero.