Question

plz answer it fast......
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Answer 1

Answer:

see the body is at rest

so the total force exerted by both on them that is force of body on the string and the force of string on the body will be equal.

now the force exerted by the body is already given that is its weight that is 15N

so the force exerted by the string will also be equal to 15N.

Hope it helped you...