Two masses A and B , each of mass M are fixed together by a massless spring, A force acts on the mass B as…

Two masses A and B, each of mass M are fixed together by a massless spring, A force acts on the mass B as shown in figure. If the mass A starts moving away from mass B with acceleration a, then the acceleration of mass B will be :

  1. MFF+Ma

  2. F+MaM
  3. Ma-FM
  4. F-MaM

Solution

acm=m1a1+m2a2m1+m2

F2M=Ma+MaB2M

aB=F-MaM

Asked in: JEE Main 2021 (26 Feb Shift 2)

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