For a body moving at a uniform velocity you can calculate the speed by dividing the distance traveled by the amount of time it took, for example one mile in 1/2 hour would give you 2 miles per hour. If the velocity is non-uniform all you can say is what the average speed is.
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Answer:
a = 2 m/s²
Explanation:
average acceleration = change of velocity / change of time
a = Δv/Δt = (20 - 10) / 5 = 10/5 = 2
The question doesn't describe any experiment. If the same experiment is repeated, no matter how many times, the acceleration due to gravity will remain the same as it was during the non-existent original experiment, and will have no effect on anything.
The Doppler effect occurs when a source of sound or light
moves either toward or away from the observer.
I only know what number 1. is and its Mechanical Energy.
