Question

P. A ball impings directly upon another ball at
rest and is itself brought to rest by the impact.
If half of initial kinetic energy is destroyed in
the collision, the coefficient of restitution is​

Answer 1

Answer:

Explanation:

Do you know   coefficient of restitution (e) =

$e=\sqrt{\frac{k.e. after}{k.e.before} }$

Let intial enery was 2x then i half destroyed and x left so

$e=\sqrt \frac{x}{2x} =\frac{1}{\sqrt{2} }$