Question

Column I contains physical quantity/process while column II contains formula/principle. Match column I and II such that the formula/principle is correct corresponding to the quantity in column I.

Answer 1

Momentum is defined as simple product of mass of a body and its velocity at that time.=$mv$
therefore,A->4
Impulse is defined as change in the linear momentum and impulse is the force that cause it in a small time. $J=m(v_2-v_1)$
B->1
In elastic collision both momentum and kinetic energy is conserved.
C->3
In an inelastic collision only momentum is conserved
D->2