
#1
Jan1411, 11:46 PM

P: 126

1. The problem statement, all variables and given/known data
Hi I am struggling with this question. It goes like this: A rubber ball is dropped on to flat ground from a height of 2m. (a) Calculate how long it takes for the ball to first hit the ground. (b)The ball loses 10% of its kinetic energy at each bounce. Calculate the time taken for the ball to come to rest. I am able to solve the first part using equation of motion. S=UT +0.5aT^2 I am not sure of the second part. 2. Relevant equations 3. The attempt at a solution 



#2
Jan1511, 04:36 AM

Sci Advisor
HW Helper
Thanks
P: 26,167

hi aurao2003!
then do the same for all the bounces, and add them … what do you get? 



#3
Jan1511, 10:26 PM

P: 126





#5
Jan1611, 06:44 AM

P: 126

Cheers!



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