Answer:
a = (V2 - V1) / t for uniform acceleration
t = (20 - 15/ m/s / 2 m/s^2 = 2.5 s
S = V1 t + 1/2 a t^2 distance covered
S = 15 * 2.5 + 2 / 2 * 2.5^2 = 37.5 + 2.5*2
S = 37.5 + 6.25 = 43.75 m
Frequency - number of waves (vibrations, revolutions, of cycles) that pass a given point per unit time.
the correct answer should be A
hope this helps :)
I am so sorry, but I do not know what section you are talking about. I hope you find the answer.
Answer:

Explanation:
When two cars collide then the momentum of two cars will remains conserved
- Mass of two cars = 100 kg
-
Speed of car B = - 10 m/s
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After collision the speed of car B = +8 m/s
By momentum conservation equation


I think is a high-pressure system because it is only in one particular area.