A billiard ball moving with a speed of $5 \,m/s$ collides with an identical ball originally at rest. If the first ball stops after collision, then the second ball will move forward with a speed of ........... $m{s^{ - 1}}$
A billiard ball moving with a speed of $5 \,m/s$ collides with an identical ball originally at rest. If the first ball stops after collision, then the second ball will move forward with a speed of ........... $m{s^{ - 1}}$
$10$
$5$
$2.5$
$1.0$
A billiard ball moving with a speed of $5 \,m/s$ collides with an identical ball originally at rest. If the first ball stops after collision, then the second ball will move forward with a speed of ........... $m{s^{ - 1}}$
In elastic head on collision velocities gets interchanged.