A red ball is thrown down with an initial speed of 1.4 m/s froma height of 29 meters above the ground. Then, 0.6 seconds after thered ball is thrown, a blue ball is thrown upward with an initialspeed of 25.6 m/s, from a height of 1 meters above the ground. Theforce of gravity due to the earth results in the balls each havinga constant downward acceleration of 9.81 m/s2.
1)
What is the speed of the red ball right before it hits theground?
m/s
2)
How long does it take the red ball to reach the ground?
s
3)
What is the maximum height the blue ball reaches?
m
4)
What is the height of the blue ball 1.8 seconds after the redball is thrown?
m
5)
How long after the red ball is thrown are the two balls in theair at the same height?
s
