railway RRB JE (CBT I + CBT II) Mock Test 2024 Physics Center of Mass and Linear Momentum Conservation of Linear Momentum
Two perfectly elastic particles P and Q of equal mass travelling along the line joining them with velocities 20 m/s and 10 m/s. After the collision, their velocities respectively (in m/s) will be
1
0, 30
2
5, 20
3
10, 20
4
20, 10