Momentum and CollisionHard

Question

If both the blocked  as shown in the given  arrangement are given together a horizontal velocity towards right. If acm be the subsequent acceleration of the centre of mass of the system of blocks then acm equals

Options

A.0 m/s2
B. m/s2
C. m/s2
D.2 m/s2

Solution

 acm = = 2 m/s-2
                                     OR
Acceleration of 1 kg w.r.t ground  = (0.1)(10) = 1ms-2
Acceleration pf 2 kg w.r.t ground  = = ms-2
acm = = 2 m/s-2

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