Question
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?
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?
Answers
Scott
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)
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)