Question

A material body A of mass m exerts a force on another material body B of mass 2m. If the acceleration of B be a, the magnitude of the acceleration of A is :- (1) Zero (2) a (3) 2a (4) a/2

Answer 1

Answer:

I hope a/2

force of A on B is 2mA=a

force on B by A is mA=a/2

Answer 2

Explanation:

According to Newton's third law of motion, if a body A exert force F on another body B then an equal and opposite force F' is exerted by body B on body A.

F = - F'

m1a1 =- m2a2

a1 = - m2 a2/m1

So the magnitude of the acceleration of A IS m2 a2/m1