A 4x100 relay is where 4 people run 100 meters and a 4x400 relay is where 4 people run 400 meters
Answer:
12.5m/s
Explanation:
(Assuming the question was asking for the speed just before it hit the ground)
We can use the first key equation of accelerated motion
Vf^2 = Vi^2+2aΔd
Vf^2 = 0 + 2(9.8)(8) (plugged in values, initial velocity is 0 since the ball was at rest)
Vf^2 = 156.8
Vf = 12.5 (squared both sides)
I think the correct answer is
D) Ted associated being asked a question with embarrassment.
Glad I could help, and good luck!
AnonymousGiantsFan
(A) -10m/s^2
(B) the average acceleration in the specified time in interval Δt = tb - ta =2.0sis
The rate at which the velocity changes is referred to as average acceleration. To determine the average acceleration of something, we divide the change in velocity by the amount of time that has passed.
For instance, the average acceleration of a crazy ball would be 20 cm/s/s if its velocity increased from 0 to 60 cm/s in 3 seconds. The marble's velocity will therefore rise by 20 cm/s per second as a result.
As a result, we can see that the definition of average acceleration is the ratio of change in velocity to change in time for a certain interval. The average acceleration is calculated over a given period of time and contrasted with instantaneous acceleration. The final velocity less the starting velocity divided by the total time is the average acceleration.
To learn more about average acceleration please visit-
brainly.com/question/17352997
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