Work Energy And Power Question 161
Question: 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 mass after collision is [Haryana CEE 1996; BVP 2003]
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
Initial momentum
therefore
Final momentum
By conservation of momentum