Ax = 1/2a(At)² + V¡At 1. A tennis ball is shot straight up with an initial velocity of 34 m/s. What is its velocity two seconds after launch? I nitial velo 34mls Ve - 3५n S - 0,६ , 2 34 9.8.2 Vf = vÇ - 14,4mls (V 2. A rock is thrown horizontally from a bridge with a velocity of 5 m/s. It hits the water below in 2.2 seconds. a) How far does the rock travel horizontally before hitting the water? 5 mlso2.2 llm b) How high is the bridge? c) What is the horizontal speed of the rock just before it hits the water?

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Chapter1: Units, Trigonometry. And Vectors
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Ax = 1/2a(At)² + V¡At
1. A tennis ball is shot straight up with an initial velocity of 34 m/s. What is its velocity two
seconds after launch?
I nitial velo 34mls
Ve - 3५n S - 0,६ , 2
34
9.8.2
Vf =
vÇ -
14,4mls
(V
2. A rock is thrown horizontally from a bridge with a velocity of 5 m/s. It hits the water below in
2.2 seconds.
a) How far does the rock travel horizontally before hitting the water?
5 mlso2.2 llm
b) How high is the bridge?
c) What is the horizontal speed of the rock just before it hits the water?
Transcribed Image Text:Ax = 1/2a(At)² + V¡At 1. A tennis ball is shot straight up with an initial velocity of 34 m/s. What is its velocity two seconds after launch? I nitial velo 34mls Ve - 3५n S - 0,६ , 2 34 9.8.2 Vf = vÇ - 14,4mls (V 2. A rock is thrown horizontally from a bridge with a velocity of 5 m/s. It hits the water below in 2.2 seconds. a) How far does the rock travel horizontally before hitting the water? 5 mlso2.2 llm b) How high is the bridge? c) What is the horizontal speed of the rock just before it hits the water?
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