Tuesday

September 30, 2014

September 30, 2014

Posted by **Anonymous** on Saturday, May 26, 2012 at 11:15am.

- physics -
**bobpursley**, Saturday, May 26, 2012 at 1:17pm60+.7*60(2)+.7^2(60)*2+...

Sum from n=0 to large [2*60*.7^n) -60

sum 120*.7^n -60

geometric ratio,

= 120/(1-.7) - 60

= 120/.3 -60

=400-60=340

**Answer this Question**

**Related Questions**

maths - A ball is dropped from a height of 1 metre. At every bounce it travels ...

math - A ball is dropped from a height of 5 ft. Assuming that on each bounce ...

math - a ball is dropped from a height of 3m and bounces on the ground . At the ...

math - a ball is dropped from a height of 5m. after each bounce, the ball rises ...

Geometric Series question? Help!? - A bouncy ball bounces to 2/3 of its height ...

physics - A ball is dropped from top of a building.if the distance travelled by ...

math - a ball rebounds one half of the height from which it was dropped. The ...

math - the height that a ball bounces varies directly as the height from which ...

calculus - A ball has bounce coefficient 0 < r < 1 if when it is dropped ...

physics - two balls are dropped to the ground from different heights. one ball ...