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                          [SCRA 1998]

A.          \[10\,m{{s}^{-1}}\]
B.                       \[5\,m{{s}^{-1}}\]
C.          \[2.5\,m{{s}^{-1}}\]
D.                       \[1.0\,m{{s}^{-1}}\]
Answer» C.          \[2.5\,m{{s}^{-1}}\]


Discussion

No Comment Found

Related MCQs