A ball is dropped from a height of 10 feet. Every time it rebounces to half of the height. how many feet it traveled?

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yousuf

  • Jul 24th, 2005
 

ans is 20 feet. 
its aproblem on sum of infinite gp with first term a=10 and common raio r=1/2. 
formula used is a/(1-r)

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Palanisamy

  • Aug 11th, 2005
 

Ans is 30 feet.

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Ravindra Garg

  • Oct 17th, 2005
 

Sn=a/(1-r)a=5n=infinityr=1/2total=10+2*Sn==30feet

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SK

  • Mar 29th, 2006
 

it can't be calculated

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vineet saxena

  • Apr 28th, 2006
 

20 feet

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kiran

  • Oct 14th, 2006
 

Ans is 30 Ft

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smitha

  • Aug 15th, 2007
 

Hi friends
How can it be GP? I mean to say, the series comes in this way 10,5,5,2.5,2.5,.......

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Sreevani

  • Dec 9th, 2018
 

Its a infinite gp series ans is 30 feets. 2a/(1-r)-a is formula

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