If you have both a basketball and tennis ball, try dropping the two of them onto
ID: 2095152 • Letter: I
Question
If you have both a basketball and tennis ball, try dropping the two of them onto a floor with a hard surface, first individually and then with the tennis ball placed ontop of the basketball before the two are dropped together. A. compare the height of the bounce of each ball in these different cases. The case where the two are dropped together may surprise you. B. Can you devise an explanation for there results using impluse and Newton's third law? (consider the force between the basketball and the floor as well as that between the tennis ball and the basketball for the case where they are dropped together.)
Explanation / Answer
A)same heights in both cases
B) because rebouncing height depends on the height from which we leave the ball ,now taking the collision between the balls and floor as completely elastic, in the first case let us assume that height is h,so the balls rise to the same height in the first case ,in the second case tennis ball is on the top of basket ball so it's distance reduces by twice the radius of basket ball while falling down but reaches the same height as before beacuse it is from where we released it and by applying conservation of momnetum in completely elastic collision the ball should raise to the height from where it started
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