Samuel throws a ball into the air 20 meters. It reaches the top of its flight at 2
seconds and hits the ground at 4 seconds. What was the ball's average speed on the
way down?
Answer:
10 m/s
Explanation:
The ball's average speed on the way down is 10 m/s.
How fast does the ball travel when dropped?It would be pretty easy to find the speed of any falling object because they all speed up at the same rate – 3.6 mph every second.
How do you find the average speed of a ball?Average speed can be calculated using the formula v=d/t where the variables are:
1 v is the average speed of the object with units of m/s.
2 d is the total distance or length of the path of the object with units of m.
3 t is the total time taken to cover the path with units of s.
4 Speed cannot have a negative value.
Learn more about the ball's average speed on the way down at
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1. False
2. True
3. Yes
4. Yes
5. Yes