A ball is dropped from a height of 8 meters. Each time it
hits the ground, it rebounds 3/4 of the distance it has
fallen. In theory, how far will the ball travel before
coming to rest?

Answer Posted / hemant gakkhar

solution results in an infinite geometric progression....


8 + 2*8*3/4 + 2*8*(3/4)exp2 + 2*8*(3/4)exp3...sum up to infinity.......

theoretically the process continues till infinite

8 + 2*8*3/4 { 1 + 3/4 +(3/4)exp2 + ....up to infinity }

8 + 2*8*3/4 { 1/(1-1/4) }

8 + 48

56

Is This Answer Correct ?    11 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A computer tape library there are two racks with 40 tapes per rack.in a given day 30 tapes are in use . What fraction remains in the rack?

697


the value of x which makes xi+2j+3k and -i+5j+k perpendicular is

633


n radians encompass what percent of a circle?

551


Oranges are bought at 11 for Rs. 10 and sold at 10. for Rs. 11 the profit is

546


Convert 3/20 into a percentage?

676






Farmer john grows corn, tomatoes, potatoes and squash. He has only 2 fields for growing these products and cannot grow more than one product per field. How manyplanting combinations can be done in one season?

574


Cite an example from life to explain the aesthetic value of Mathematics

612


State the necessary condition for differentiability of a function f(x,y) at a point (a,b).

838


What is multicollinearity?

2549


Define Continuity of a function f(x,y) at a point (a,b) ?

520


A country adopted a policy requiring all couples to continue having children until they had a girl, after which they must stop having children. How many children willthe average family have and what will the sex distribution be?

577


In 1700 ad, this person showed that a series of 0s and 1s could be used to denote a number:

637


if card punch operator can process 80 cards in half an hour how many cards can this process in 7hr 30min?

520


find 842.8 +602=

554


Assuming a year in a dogs life is equivalent to 7 years of a humans life, what is 1 hour of a dogs life approximately equivalent to in a humans life?

552