Saturday

January 31, 2015

January 31, 2015

Posted by **sally** on Sunday, October 30, 2011 at 10:30pm.

- Math (logic and problem solving) -
**bobpursley**, Sunday, October 30, 2011 at 10:37pmheight: 16;8;4;2;1

fourth bounce. Distance went 16+2*8+2*4+2*2+1

or another way:

Distance=16+ 16(.5)+16*.5^2+ 16*.5^3+1

this looks like a geometric series, r=.5

So in a geometric series,

an= A_{1}*r^n n=0, 1, 2,..

to find our problem

1=16 (.5)^n

1/16= (1/2)^n

take log base 1/2 of each side..

4=n

**Answer this Question**

**Related Questions**

math - Fay's rubber ball bounces exactly half the height from which it is ...

Math - Fay's rubber ball bounces exactly half the height from which it is ...

Math - a special rubber ball is dropped from the top of a wall that is 64 feet ...

Math - Please explain how to figure out the following 7th grade math problem: If...

Math - 3rd grade summer work - A Super-Duper ball bounces twice its height when ...

maths lit - a ball is dropped from a height of 2r1/3 meters. It bounces to 3/4 ...

physic - A rubber ball dropped from a height of exactly 6 ft bounces several ...

math - 5. A rubber ball dropped on a hard surface takes a sequence of bounces, ...

Physics - A rubber ball dropped from a height of exactly 5 ft bounces (hits the ...

math - Sandy dropped a basketball from the top of her Mom'soffice building which...