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(1 point) A student kicks a soccer ball three times. Another student records the distance, the amount of...

Question 1 (1 point)
A student kicks a soccer ball three times. Another student records the distance, the amount of time the ball travels, and the average speed in the table shown below.
Soccer Ball Data
Kick | Distance (m) | Time (s) | Average Speed (m/s)
1 | 55 | 5.0 | 11
2 | 50 | 5.0 | 10
3 | 30 | ? | 15
How many seconds did it take for the ball to travel 30 m during kick 3?
F 0.5 s
G 1.0 s
H 1.5 s
J 2.0 s
A F
B G
C H
D J
Question 2 (1 point)
The graph below shows the motion of a ball rolling on a straight track.
What was the ball's average speed during the time represented in the graph?
F 0.2 m/s
G 0.5 m/s
H 5.0 m/s
J 10.0 m/s

Answer

  1. Question 1: To find the time it took for the ball to travel 30 m during kick 3, use the formula for average speed: Average Speed = Distance / Time. Rearranging gives Time = Distance / Average Speed. For kick 3, Time = 30 m / 15 m/s = 2.0 s. The answer is J.

  2. Question 2: To find the average speed from the graph, use the formula Average Speed = Total Distance / Total Time. From the graph, the total distance is 10 m and the total time is 20 s. Therefore, Average Speed = 10 m / 20 s = 0.5 m/s. The answer is G.

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