If pulleys shown in diagram are smooth and massless and a₁ and a₂ are acceleration of blocks of

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4-1.Newton's Laws of Motion

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If pulleys shown in the diagram are smooth and massless and $a_1$ and $a_2$ are acceleration of blocks of mass $4 \,kg$ and $8 \,kg$ respectively, then

A

$a_1=a_2$

B

$a_1=2 a_2$

C

$2 a_1=a_2$

D

$a_1=4 a_2$

Solution

(b)

For $8 kg T^{\prime}=8 a_1 \ldots(i)$

for $4 kg$

$4 g-T=4 a_2 \ldots(ii)$

for pulley

$T^1=2 T \ldots(iii)$

Using $(i), (ii)$ and $(iii)$

$a_2=\frac{a_1}{2}$

Standard 11

Physics

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