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Two blocks A and B connected by an ideal...

Two blocks A and B connected by an ideal spring of spring constant `K=1000 N/m` are moving on a smooth horizontal plane due to the action of a horizontal force F. Mass of A is 5 kg, mass of B is 2 kg and F=35 N. Find the extension of the spring at an instant when both A and B move with constant acceleration:

A

1 cm

B

`2.5` cm

C

`1.5` cm

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A


`F-T=M_(A)a`
`Kx=T=M_(B)a`
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