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Two blocks connected by a spring rest on...


Two blocks connected by a spring rest on a smooth horizontal plane as shown in Fig. A constant force `F` start acting on block `m_2` as shown in the figure. Which of the following statements are not correct?

A

length of spring increases continuoulsy, if `m_(1)gtm_(2)`

B

block start performing SHM about centre of mass of the system with increasing amplitude.

C

blocks start performing SHM about centre of mass of the system which moves rectilinearly with constant acceleration

D

acceleration of `m_(2)` is maximum at initial moment of time only

Text Solution

Verified by Experts

The correct Answer is:
C
In this case, a constant force F acts on the systme. So, the centre of mass of system moves with constant acceleration.
`a_(CM)=(F)/(m_(1)+m_(2))`
In the frame of centre of mass, particles execute SHM because force on each particles varies linearly.
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