Physics

A red ball is thrown directly upwards from the ground with an initial velocity of 35.0 m/s. At the same time, a blue ball is thrown directly upwards from he ground with an initial velocity of 10.0 m/s.

1. How high is the red ball when the blue ball reaches its highest point?

2. How fast is the red ball travelling when the blue ball hits the ground?

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  1. 1. time to blue max ... v / g

    red vel @ blu max ... v - g t

    ave red vel ... (2 v - g t) / 2

    red hgt ... (ave vel) * t

    2. blu ... time up = time down

    red vel @ blu impact
    ... v - g(blu flight time)

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