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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)



Question ID - 50679 | SaraNextGen Top Answer

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
Answer Key / Explanation : (b) -

(b)

Initial momentum

Final momentum

By conservation of momentum

127 votes


127