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Two blocks A and With mass 4 kg and 6 kg...

Two blocks A and With mass 4 kg and 6 kg respectively are connected by a stretched spiring of negligible mass as in figure. When the two blocks are released simultaneously the initial acceleration of B is `1.5 m//s^(2)` westward. The acceleration of A is :

A

`1 m//s^(2)` westward

B

`2.25 m//s^(2)` eastward

C

`1 m//s^(2)` eastwards

D

`2.75 m//s^(2)` westwards

Text Solution

Verified by Experts

The correct Answer is:
B

F=kx=6x1.5=9
Now kx=9=4a
a=2.25
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Knowledge Check

  • Two balls A and B of masses 100gm and 250 gm respectively are connected by a stretched spring of negligible mass and placed on a smooth table. When the balls are released simultaneously the initial acceleration of B is 10 cm/se c^(2) west ward. What is the magnitude and direction of initial acceleration of the ball A-

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    25 cm/se`c^(2)` Eastward
    B
    26 cm/se`c^(2)` North ward
    C
    27 cm/se`c^(2)` West ward
    D
    28 cm/se`c^(2)` South ward

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    A
    `25cm//sec^(2)` East ward
    B
    `25 cm//sec^(2)` North ward
    C
    `25cm//sec^(2)` West ward
    D
    `25cm//sec^(2)` South ward

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    A
    0
    B
    `(7)/(6)`
    C
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