A Ball is dropped from 8 m height.it rebounds to half the height when it hits the ground. What is the distance travelled by the ball before it hits the ground?	Pick one:
A) 20m
B) 21m
C) 22m
D) 24m
E) 28m
distance travelled by the ball before coming to rest = 8+4+4+2+2+1+1+(1/2)+(1/2)+(1/4)+(1/4)+...upto infinity   =8+2*[4+2+1+(1/2)+(1/4)+...]   =8+2*[4/(1-1/2)]   =8+2*8= 
<gadget id="calculator">8+2*8</gadget>
<output>24</output>
24 m   ANSWER:24m
<result>D</result>
A Ball is dropped from 8 m height.it rebounds to half the height when it hits the ground. What is the distance travelled by the ball before it hits the ground?