A block of mass 1 kg is suspended by a string of mass 1 kg , length 1 m as shown in figure. (g=10,m

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4-1.Newton's Laws of Motion

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A block of mass $1 kg$ is suspended by a string of mass $1 kg$, length $1 m$ as shown in figure. $(g=10\,m /$ $s ^2$ ) Calculate:Force exerted by support on string.

A

$10\,N$

B

$20\,N$

C

$15\,N$

D

$25\,N$

Solution

Force exertd by support $=T_c$

$=1\,g +1\,g =20\,N$

Standard 11

Physics

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