Two identical balls A and B having velocities | vedclass

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(D) In an elastic collision between two bodies of equal mass,the velocities of the bodies are interchanged after the collision.Given: Initial velocity

Vedclass · Accepted Answer

$0.5 \, m s^{-1}, -0.3 \, m s^{-1}$

Vedclass · Answer

(D) In an elastic collision between two bodies of equal mass,the velocities of the bodies are interchanged after the collision.Given: Initial velocity of ball $A$ $(u_A)$ = $0.5 \, m s^{-1}$ and initial velocity of ball $B$ $(u_B)$ = $-0.3 \, m s^{-1}$.Since the masses are identical and the collision is elastic,the final velocity of ball $A$ $(v_A)$ will be equal to $u_B$,and the final velocity of ball $B$ $(v_B)$ will be equal to $u_A$.Therefore,$v_A = -0.3 \, m s^{-1}$ and $v_B = 0.5 \, m s^{-1}$.The question asks for the velocities of $B$ and $A$ respectively,which are $v_B$ and $v_A$.Thus,the velocities are $0.5 \, m s^{-1}$ and $-0.3 \, m s^{-1}$.

Two identical balls $A$ and $B$ having velocities of $0.5 \, m s^{-1}$ and $-0.3 \, m s^{-1}$ respectively collide elastically in one dimension. The velocities of $B$ and $A$ after the collision respectively will be

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