Two masses A and B each of mass M are connected together by a massless spring. A force F acts on the mass B as shown in fig. At the instant shown the mass A has an acceleration a. What is the acceleration of mass B ?
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Options

A. a
B. `-a`
C. `(F)/(M)`
D. `(F)/(M)-a`

Answer

d

Explanation

Here applied force `F=m_(1)a_(1) + m_(2)a_(2)`
`:.F= M a + Ma_(2)`
`:. a_(2) =(F)/(M) -a`
Hence correct choice is (d)