A bal A collides elastically with another identical ball B initia… - Vidyadip

MCQ

$A$ bal $A$ collides elastically with another identical ball $B$ initially at rest $A$ is moving with velocity of $10m/ s$ at an angle of $60^o$ from the line joining their centres. Select correct alternative :

A
velocity of ball $A$ after collision is $5\, m/s$
B
velocity of ball $B$ after collision is $5m/s$
C
velocity of ball $A$ after collision is $7.5 m/s$
✓
velocity of ball $B$ after collision is $5 m/s.$

✓

Answer

Correct option: D.

velocity of ball $B$ after collision is $5 m/s.$

d

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