Question

A force of 6N produces an acceleration of 2 m/
s when it acts on a body P. and 3 m/s? when it
acts on another body Q. If the bodies P, Q tied
together and a force of 5N is applied, the
acceleration is
1) 1.6 m/s? 2) 1 m/s? 3) 1.5 m/s? 4) 2.5 ​

Answer 1

F= ma

6 = m1 × 2

m1 = 3Kg

6 = m2 × 3

m2 = 2kg

There fore,

5 = (m1+m2) × a

5 = 5 × a

a = 1m/s ^ 2