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The first ball of mass  moving with a velocity  collides head on with the second ball of mass  at rest. If the coefficient of restitution is ,then the ratio of  the velocities of the first and the second ball after the collision is

a)

b)

c)

d)


Question ID - 100330 | SaraNextGen Top Answer

The first ball of mass  moving with a velocity  collides head on with the second ball of mass  at rest. If the coefficient of restitution is ,then the ratio of  the velocities of the first and the second ball after the collision is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

As the collision is head-on,

or (i)

Further, coefficient of restitution is

Or (ii)

Adding Eqs. (i) and (ii), we get

    (iii)

Now     (iv)

    (v)

     (vi)
127 votes

127
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