May 31, 2016

Homework Help: physics

Posted by Shaina on Tuesday, September 4, 2012 at 8:07pm.

Two students are on a balcony 21.4 m above the street. One student throws a ball, b1, vertically downward at 13.2 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed. The second ball just misses the balcony on the way down.
(a) What is the difference in time the balls spend in the air?

(b) What is the velocity of each ball as it strikes the ground?
velocity for b1 m/s
velocity for b2 m/s

(c) How far apart are the balls 0.570 s after they are thrown?

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