“ Ramu picks small block of mass 200 g and kept it at the top of a frictionless incline which is 10 m long and 3.2 m high. There are two ways of carrying the block up. One directly lifting the block and placing at the top of the incline and other by sliding the block to the top from bottom.” (Take g = 10 m/s 2 )
(i) How much work was required to lift the block from the ground and put it at the top?
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Ans.(i)
Sol. 6.4 J
(ii)
Sol. 6.4 J
(iii)
Sol. 8 m/s1
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