Question -
Answer -
Horizontal force, F = 600 N
Mass of body A, m1 =10 kg
Mass of body B, m2 =20 kg
Total mass of the system, m = m1 + m2 =30 kg
Using Newton’s second law of motion, theacceleration (a) produced in the system can be calculated as:
F = ma

When force F is applied onbody A:

Theequation of motion can be written as:
F – T = m1a
∴T = F – m1a
= 600 – 10 × 20 = 400 N … (i)
When force F is applied onbody B:

Theequation of motion can be written as:
F – T = m2a
T = F – m2a
∴T = 600 – 20 × 20 = 200 N … (ii)