Question

PLEASE HELP, NOT GETTING A CORRECT ANSWER :(

Answer 1

A golf ball is dropped from a height of of 80m. Each time the ball hits the ground, it rebounds to 1/3 of the height through which it is fallen. Then total distance travelled by the ball is

Answer 2

sure!

Answer 3

geometric series
but add the initial 80 at the end, as it does not fit the pattern

Answer 4

yes , i am getting 240 :(

Answer 5

u have to apply infinte geometric series here

Answer 6

\[\sum_{n=1}^{\infty}80\times \left(\frac{1}{3}\right)^n\]

Answer 7

yeah

Answer 8

I will show you what i did , and u point out the mistake

Answer 9

oh wait, maybe i am off by a factor of two
as i said, forget the first drop, add that in at the end