Work Energy And Power Question 89

Question: A smooth sphere of mass M moving with velocity u directly collides elastically with another sphere of mass m at rest. After collision their final velocities are V and v respectively. The value of v is [MP PET 1995]

Options:

A) 2uMm

B) 2umM

C) 2u1+mM

D) 2u1+Mm

Show Answer

Answer:

Correct Answer: C

Solution:

v2=(m2m1m1+m2) u2+2m1u1m1+m2

=2MuM+m=2u1+mM



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