Q.
Weight mg of a block is a force acting downward towards centre of the earth. A block of mass 1 kg is placed on an inclined plane as shown in the figure. Find the x-component and y-component of weight of the block are
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a
6 N, -8 N
b
6 N, 8 N
c
8 N, 6 N
d
8 N, -6 N
answer is A.
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Detailed Solution
mg = 1×10 = 10 NFrom figure, the x-component ismg sin 370 = 1×10×35 = 6 Nand y-component is-mg cos370 = -1×10×45 = -8 N
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