Question

17. (a) Mass of a body is 10kgf. Is this statement true? If no, give reason?
(b) If the above statement is false, write the correct statement.
ne is 45 kg
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Answer 1

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 Newtons second law of motion, the acceleration (a) produced in the system can be calculated as:

F=ma

a = F/M = 600 / 3 =20m/s²

When force F is applied on body A:

The equation of motion can be written as:

F−T=m1a

T=F−(m1a) =600−10×20=400 N (i)

When force F is applied on body B:

The equation of motion can be written as:

F−T=m2a

T=F−(m2)a

T=600−20×20=200 N (ii)

which is different from value of T in case (i). Hence our answer depends on which mass end, the force is applied.