Two putty balls of equal mass moving with equal velocity in mutually perpendicular directions, stick together after collision. If the balls were initially moving with a velocity of each, the velocity of their combined after collision is |
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a) |
b) |
c) |
d) |

Two putty balls of equal mass moving with equal velocity in mutually perpendicular directions, stick together after collision. If the balls were initially moving with a velocity of each, the velocity of their combined after collision is |
|||||||

a) |
b) |
c) |
d) |

1 Answer

127 votes

**(b)**

Initial momentum

Final momentum

By conservation of momentum

127 votes

127