-3) M http://ezto mheducation.com/hm.tpx NM TEST #2 x C Physics question I Chegg

Question

-3) M http://ezto mheducation.com/hm.tpx NM TEST #2 x C Physics question I Chegg.com 1 out of 2 attempts Starting with the left-most column, populate the boxes from left to right without skipping a Assistance empty boxes. Ties should be grouped in the same box. Check My Work View Hint Suppose you throw a highly elastic rubber ball at the flat surface of a close-by truck with View Question a speed of 100 m/s. Rank the speed at which the ball returns to you, from smallest to Guided Solution largest based on the following conditions Practice This Question a) The truck is standing still. Print b) The truck is moving towards you at 23 m/s. Question Help c) The truck is moving away from you at 23 m/s. Report a Problem d) The truck is moving towards you at 46 m/s. e) The truck is moving away from you at 46 m/s. CO Smallest Largest P 12:41 PM Saturday 4/9/2016

Explanation / Answer

Here m2>m1 , v1i = 100 m/s

For elastic collision,

v2f = [(m2-m1)/(m1+m2)]v1i + [(2m2)/(m1+m2)]v2i

a) v2i = 0 m/s

b) v2i = -23 m/s

c) v2i = 23 m/s

d) v2i = -46 m/s

e) v2i = 46 m/s

Thus we can conclude that d) > c) > a) > b) > e)

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