Question

A. Choose the correct answer:
1. Two bodies A and B of equal mass have their velocities in the ratio 1: 2. What will be the ratio
of their kinetic energies?​

Answer 1

Answer:

1:4

Explanation:

kinetic energy= 1/2 mv^2

for A,

K.E= 1/2 mv1^2

for B,

K.E =1/2 mv2^2

masses are same

by taking ratio

K.E1/K.E2= (v1/v2)^2

=(1/2)^2

=1/4

answer= 1:4

Answer 2

Answer:

ans is 1:4 is the correct ans