Question

A 100 Newton acting on a body gives its acceleration of 1 metre per second square.A 250 Newton force acting on the same body causes an acceleration of 3 metres per second square the mass of the body is
a) 100kg b)75kg c) 125kg d)50kg​

Answer 1

Answer:

a) is answer.

Explanation:

Solve it from the first force.

F=ma,F/a=m

that is m=100/1=100kg.

When we solve it by 250N this is not the answer also it is not in option. So 100 is right.

If 250 N acts on the body its acceleration will be 2.50m/s^2 not 3

look here let acceleration be x

250/x=100,so x=2.5