collision to occur at height h = 5.0 m above the throw point. In addition, she knows that she needs t1 = 4.0 s between successive throws. Assume that she throws both cans with the same speed. Take g to be 9.81 m/s2.
(a) How long it takes (in seconds) after the ﬁrst can has been thrown into the air for the two cans to collide? Answer to 4 signiﬁcant ﬁgures. (b) Find the initial speed of the cans (in meters/second) to 4 signiﬁcant ﬁgures.