Q.
A big ball of mass M, moving with velocity u strikes a small ball of mass m, which is at rest. Finally small ball obtains velocity u and big ball v. Then what is the value of v
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a
M−mM+mu
b
mM+mu
c
2mM+mu
d
MM+mu
answer is A.
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Detailed Solution
From the formulae v1=m1−m2m1+m2 u1We get v=M−mM+m u
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