If the KE of a body becomes four times its initial value, then the new momentum will be more than its initial momentum by,

Options

A. 0.5
B. 1
C. 1.25
D. 1.5

Answer

A

Explanation

`(k_2)/(k_2)=4 implies ((v_2)/(v_1))^2=4implies(v_2)/(v_1)=2`
Then =`((P_2-P_1)/(P_1))xx100=((mv_2-mv_1)/(mv_1))xx100=`
`((v_2)/(v_1)-1)xx100=100%`