Two identical box A and B , of mass 10 kg and 20 kg respectively, which one has more inertia and why?
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Two identical box A and B , of mass 10 kg and 20 kg respectively, which one has more inertia and why?
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Answer:
Horizontal force,F=600 N
Mass of body A, m
1
=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=
m
F
=
30
600
=20m/s
2
When force F is applied on body A:
The equation of motion can be written as: F−T=m
1
a
T=F−(m
1
)a
=600−10×20=400 N (i)
When force F is applied on body B:
The equation of motion can be written as:
F−T=m
2
a
T=F−(m
2
)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.
solution
Explanation:
oh I don't have the explanation sorry!