1.

A body of mass m is being pulled by the string of mass m with a force p is applied at one end.the force exerted by the spring on the body will be:​

Answer»

EXPLANATION:

For the string of mass 'm',

P−mg−F=ma

For the body of mass M,

F−Mg=Ma

Adding, we have:

p−mg−Mg=Ma+ma

⟹a= P - G

M+m

Force EXERTED by string on the body F=M(g+a)

Substituting the value of a in it, we have:

F=M(g+ PM - g)

M+m

⟹F = PM

M+m


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