Question: 100% NCERT covered from Particular Keyword.Explanations are 100% from NCERT | [Difficult level: Easy] From NCERT NEET Derived Question.
Choose the correct statement(s) from the following.
I. Recoiling of a gun is an application of principle of
conservation of linear momentum.
II. Explosion of a bomb is based on second law of motion
(a) I only (b) II only
(c) I and II (d) None of these
Answer: (a) I only
According to third law of motion bullet experiences a force F then, give experiences an equal and opposite force F. According to second law, F't is change in momentum of the bullet, then – F't is change in momentum of the gun. Since initially both are at rest, the final momentum = 0. P b+ P g= 0. Thus the total momentum of (bullet + gun) is conserved.
