For a system to follow the law of conservation of linear momentum during a collision , the condition is Total external force acting on the system is zero. Total external force acting on the system finite and time of collision is negligible. Total internal force acting on the system is zero.

Question

Dr. Abubacker · Accepted Answer

(a) From Newton’s second law,
$F = \frac{dp}{dt}$
If F=0,then $\frac{dp}{dt} = 0$
$\Rightarrow \ \ \ \ \ \ p = constant$
Thus, if total external force acting on the system is zero, then linear momentum of the system remains conserved.

Q. For a system to follow the law of conservation of linear momentum during a collision , the condition is Total external force acting on the system is zero. Total external force acting on the system finite and time of collision is negligible. Total internal force acting on the system is zero.

Explanation

Reviewed by Dr. Abubacker

Want more practice?