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A block of mass 2 Kg is placed on a ...

A block of mass 2 Kg is placed on a smooth inclined plane of inclination `30 ^(@)` with the horizontal plane . Find (i) acceleration of the block and (ii ) normal reaction supplied by the inclined plane on the block .

Text Solution

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from the figure ,
(I ) acceleration of the block `= g sin 30 ^(@) = 9.8 xx(1 )/(2) `
`= 4.9 m . S ^(-2) `
(ii ) normal reaction , N `= W cos 30 ^(@)= ( 2 xx 9. 8 ) xx ( sqrt(3) )/( 2) `
`= 9.8 xx 1.732 ~~ 17 N `
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