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Subject :NSO    Class : Class 9

A force F of 50 N is applied at one end of a string. The string is passing over a smooth fixed pulley and the other end is tied to a block of mass 10 kg as shown in the given figure. The block is free to move on a frictionless horizontal surface. For initial instant, θ = 30° while for final instant, θ = 37°. (Take sin 37° = 0.6018 and cos 37° = 0.798) Match column I with column II and select the correct option from the given codes.

Column I Column II
(a) Net work done by force
F on the block
(i)
(b) Final velocity of the
block if initially it was
at rest
(ii)
(c) Initial acceleration of
the block
(iii) 100 SI units
(d) Final acceleration of
the block
(iv)
(v) 4 SI units

A(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
B(a)-(iii), (b)-(i), (c)-(iv), (d)-(v)
C(a)-(iii), (b)-(v), (c)-(iv), (d)-(ii)
D(a)-(ii), (b)-(i), (c)-(iv), (d)-(v)


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