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  • Two blocks A and B of masses m & 2m respectively are held at rest such that the spring is in natural length. Find  out the accelerations of both the blocks just after release: <i

Two blocks A and B of masses m & 2m respectively are held at rest such that the spring is in natural length. Find  out the accelerations of both the blocks just after release:

Option: 1

g \downarrow, g \downarrow


Option: 2

\frac{g}{3}\downarrow , \frac{g}{3}\uparrow


Option: 3

0,0


Option: 4

g \downarrow, 0


Answers (1)

best_answer

 

Spring force -

F= -Kx

- wherein

K=\left | \frac{F}{x} \right |= \frac{N}{m}

 

 2mg-T=ma_1

mg-kx=ma_2

just when the blocks are released x=0 and T=kx=0

a_2 =g\ and\ T=kx=0

2mg-T=2ma_1

a_1=g

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Gunjita

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