Question

A rubber ball is dropped from the top of the 50 metres tall tower .Every time the ball rebounces only 95% of its previous height.What height would it raise after bouncing on the ground three times approximately

Answer 1

Given :---- A rubber ball is dropped from the top of 50 m tall tower ... and every time he rebounces 95% of previous height ....

Solution :------

The ball falls 50m and rebounds 50*95/100 = 47.5m(in first bounce)

then falls and rebounds 47.5*95/100 = 45.125m (in second bounce)

he falls again and rebounds = 45.125*95/100 = 42.86m (in third bounce)

he falls again after third time and this time he rebounds = 42.86*95/100 = 40.72m (approx)

so, the ball bounce 40.72m approx after third bounce ....

(Hope this helps you)