Question

show that in an isolated system linear momentum is conserved ​

Answer 1

Explanation:An isolated system is a system in which no external force acts on the system.Now in accordance with Newton’s 2nd law of motion,as no external force acts on the system,the rate of change of momentum is 0 and hence,the linear momentum remains conserved,as under…

dP/dt = 0

Henceforth, |P|= constant,( as derivative of a constant function is 0)

( where P=mv=linear momentum)