Question

Name the physical quantity which is determined by the rate of change of linear momentum.

Answer 1

1. The rate of change of momentum of a body is directly proportional to the applied unbalanced force. The change in momentum is in the direction of this force.
2. Mathematical formulation:- If $\text{'}m\text{'}$is the mass of an object, $\text{'}u\text{'}$is the initial velocity, $\text{'}v\text{'}$is the final velocity, and $\text{'}t\text{'}$ is the time taken, then by a statement of the second law of motion, force is given by,
3. $Force\propto Rateofchangeofmomentum=\frac{Changeofmomentum}{time}$