A dynamometer D is attached to two blocks of masses 6 ,kg and 4 ,kg as shown in figure. reading of d

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4-1.Newton's Laws of Motion

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A dynamometer $D$ is attached to two blocks of masses $6 \,kg$ and $4 \,kg$ as shown in the figure. The reading of the dynamometer is ............ $N$

A$18$

B$28$

C$38$

D$48$

Solution

(c)
The tension in the spring will be the reading of dynamometer
$F)_{\text {ext }}=M a$
$50-30=10(a)$
$a=2 \,m / s ^2$
for $6 \,kg$ block
$50-T=6(2)$
$T=38\,N$

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Solution

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