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5.work,energy,power and collision — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics5.work,energy,power and collision1 Mark
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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