Question

A mass my is moving on a plane surface along a
straight path under the action of a force F. Another
mass m2 is added on to m1 and the acceleration drops
to 1/5 of the earlier value of the acceleration. Assuming
that F remains constant, what is the ratio m1 :m2?
(a) 1/6
(b) 1/5 (C) 1/4 (d) 4/5
S. (c)​

Answer 1

Answer :

acceleration in a

=25/m1

acceleration in b

=25/m2

therefore A/B

=m1/m2=4:3

now when force is increased to 30N

acceleration in A

=30/m1

acceleration in B

=25/m2

A/B=m2/m1

=4/3

the diff=0

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