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Figure shows two block system, 4 kg bloc...

Figure shows two block system, 4 kg block rests on a smooth horizontal surface, upper surface of 4 kg is rough. A block of mass 2 kg is placed on its upper surface. The acceleration of upper block with respect to earth when 4 kg mass is pulled by a force of 30 N, is

A

`0 m//s^(2)`

B

`5 m//s^(2)`

C

`8m//s^(2)`

D

`2 m//s^(2)`

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AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-Assignment (SECTION-B)
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