Question
A force of 5 N gives a mass m1 and acceleration of 10 ms–2 and a mass m2 and acceleration of 20 ms–2. What acceleration would it give if both the masses were tied together?
Solution
Given,
Force acting on the body, F = 5 N
Acceleration, a = 10 ms-2
So, mass of first body, m1 = 
Rate of acceleartion of body = 20 ms-2
MAss of second body, m2 = 
= 
When the two masses are tied together, the total mass is,
m = m1+m2 = 0.50 +0.25 = 0.75 kg
Acceleration produced in the combined mass by the force of 5 N is,
a = 
