Question

A force of 100 N produces an acceleration of 100m/s 2 and 200 m/ s 2 in an object A and an Object B respectively. What would be the acceleration if both the object are combined as one. What should be the force applied on each of the object to produce the same acceleration?​

Answer 1

Given, force F = 40N. acceleration a = 8m s We know that F=ma. When another object of same mass is tied to given object then we get change in mass as m' = m + m = 2m. Now if a force F is required to produce same acceleration again, then F = m'a = 2ma F F 2ma ma = 2 or F2F = 2 x 40 N = 80 N

Answer 2

Given, force F= 40N. acceleration a =

8m s We know that F=ma. When another

object of same mass is tied to given

object then we get change in mass as m'

= m +m = 2m. Now if a force F is required

to produce same acceleration again, then

F=m'a =2ma FF 2ma ma = 2 or F2F=2

x 40 N = 80 N