“ Ramu picks small block of mass 200 g and kept it at the t…

Physics Work, Energy, Power and Collision Mix Numeric Response

Published on: September 12, 2026

“ 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?

6.4 J 6.4 J 2m/s

3.2 J 3.2 J 4 m/s

1.6 J 1.6 J 8 m/s

None of these (ii) How much work was required to slide the block up the incline and put it at the top? None of these (ii) What will be the speed of the block when it reaches the ground if it falls off the incline? None of these

Text Solution

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The correct answer is:

6.4

Ans.(i)

Sol. 6.4 J

(ii)

Sol. 6.4 J

(iii)

Sol. 8 m/s1

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