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A ball is dropped from a height of 8 meters. Each time it
hits the ground, it rebounds 3/4 of the distance it has
fallen. In theory, how far will the ball travel before
coming to rest?

Answer Posted / hemant gakkhar

solution results in an infinite geometric progression....


8 + 2*8*3/4 + 2*8*(3/4)exp2 + 2*8*(3/4)exp3...sum up to infinity.......

theoretically the process continues till infinite

8 + 2*8*3/4 { 1 + 3/4 +(3/4)exp2 + ....up to infinity }

8 + 2*8*3/4 { 1/(1-1/4) }

8 + 48

56

Is This Answer Correct ?    11 Yes 0 No



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