Question

Hailstones falling vertically with speed of 10 m/s hit with respect to himself the windscreen of a moving car and rebound elastically. Find the velocity of the car if the driver find the haolstones rebound vertically after striking. Windscreen makes an angle `30^(@)` with the horizontal.

Answer 1

Correct Answer - `10sqrt(3) ms^(-1)`
`tan 60^(@) = (V_("Car"))/(V_(H)) rArr sqrt(3) = (V_(C))/(10) rArr V_(C)=10 sqrt(3) m//s`
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