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When a cieling fan is switched on it makes 10 revolutions in 1st 3 seconds Assumming a uniform angular acceleration how many rotations it will make in next 3 seconds
Dear pallavi
θ= 1/2 αt2
10 =1/2 * α *9
α =20/9 rev /sec2
so revolution in 6 sec
= 1/2 * 20/9 * 36
=40
revolution in next 3 sec = revolution in 6 sec - revolution in 3 sec
=40 -10
=30
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