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anonymous
 4 years ago
8. A ball is dropped from a height of 160 cm. Each time it drops it rebounds to 80% of its previous height.
b) What is the total distance travelled at the time of the 10th bounce?
anonymous
 4 years ago
8. A ball is dropped from a height of 160 cm. Each time it drops it rebounds to 80% of its previous height. b) What is the total distance travelled at the time of the 10th bounce?

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UnkleRhaukus
 4 years ago
Best ResponseYou've already chosen the best response.1\[160 + \sum_{n=1}^{10} 160 \times 2 \times 0.8^n\]

UnkleRhaukus
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1326859180372:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0UnkleRahukas It is an infinite series

UnkleRhaukus
 4 years ago
Best ResponseYou've already chosen the best response.1i thought there were only 10 bounces?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the answer is 1268.2m just so to let you guys know Im looking for a sum

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Sorry i calculated the total distance that it would travel it is definitely not 1268.2m

UnkleRhaukus
 4 years ago
Best ResponseYou've already chosen the best response.1even if it bounced 100% of original bounce you will not get a total distance greater than 21x1.6m =34m

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i think they meant sum find the sum of all the distances

UnkleRhaukus
 4 years ago
Best ResponseYou've already chosen the best response.1well i dont know if i have done this correctly but i have ~\[ 160+160 \times 2 \times 4.57\]~\[16.22meters\]
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