if a ball is dropped from 8 meter and it bounce back half
the distance then what is the distance it travel before
going to rest?

Answer Posted / baburammca

8+8(.5)*2+8(.5)^2*2+8(.5)^3*2...
8+2(8(.5)+8(.5)^2+8(.5)^3...)
Infinity= u1/1-r
u1=8(.5). r=.5
8+2(8(.5)/1-5)
8+2*8
24

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A speedboat whose speed is 15 kmph in still water goes 30 kmph downstream and comes back in a total of 4hrs 30min. What is the speed of the stream in kmph?

764


x + 4 y relation between x and y is x/2y = 3/2 ie x = 3y find the x -2y ratio

674


Find odd one cat,dog,rabbit,hamster,elk.

889


What is the attitude

650


A ship is away from the shore by 180 miles.A plane is travelling at 10 times speed of the ship.How long from the shore will they meet?

1006






A finish the work in 10 days. B is 60% efficient than A. So hoW days does B take to finish the work?

636


500 men are arranged in an array of 10 rows and 50 columns . ALL tallest among each row are asked to fall out . And the shortest among THEM is A. Similarly after resuming that to their original positions that the shortest among each column are asked to fall out. And the longest among them is B . Now who is taller among A and B ?

838


The ratio for Boys to Girls is 6:4. 60% of the boys and 40% of girls take lunch in the canteen. What % of class takes lunch in canteen.

690


There are 3 societies A,B,C having some tractors each. A Gives B and C as many tractors as they already have. After some days B gives A and C as many tractors as they have. After some days C gives A and B as many tractors as they have. Finally each has 24 tractors.what is the original No.of tractors each had in the beginning?

974


A student gets 70% in one subject, 80% in the other. To get an overall of 75% how much should get in third subject.

751


Three men A, B, C can complete a work separately in some specified days (May be 8, 7, 6).If they do the work together by alternate days. Then how many days need to complete the work?

851


Package information is stored in a) DB2 Directory b) DB2 system tables c) DB2 catalog tables d) None of the above

1651


one question has last part like difference between two terms is 9 and product of two numbers is 10, what is the squares of sum of numbers?

767


Two people X & Y walk on the wall of a go down in opposite direction. They meet at a point on one side and then go ahead. X after walking for some time, walks in opposite direction for 15 mtrs.Then again he turns back and walks in the original direction. What distance did Y walk before they met again, if X walks 11 mtrs by the time Y walks 8 mtrs.

689


1. Questions on probability 2. Questions on statistics (mainly growth rates, market shares, etc.) 3. Questions on general logics 4. Evaluate strengths and weekness of proposed product All questions are open test

4282