Correct answer is B
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Assume uniformly accelerated motion
Vf = Vo - at => a= [Vo - Vf] / t
Vf = 0, t = 20 s => a = Vo / 20
x = Vot - at^2 / 2
x = Vot - (Vo / 20) * t^2 /2
x = 1775 feet * [1 mile / 5280 feet] = 0.336 mile
t = 20 s
=> 0.336 = 20Vo - Vo(20)^2 /(40) = 20Vo - 10 Vo = 10 Vo
=> Vo = 0.336 /10 = 0.0336 mile /s
Vo = 0.0336 mile/s * 3600 s/h = 120.96 mile / h
Therefore, the car was way over the speed limit.
Answer:isisisisisjwjsusjsnss
Step-by-step explanation:
This question calls for ratios. Reuben drove 268 miles with 12 gallons. 268 divided by 12 is
, so he can drive 22 and one third of a mile with one gallon. Multiply that by 9 and you will get 201 miles, which is how much he can drive using 9 gallons of gas
3(2x - 1) - 2(3x + 4) = 11x
- Distribute 3 inside the parentheses.
6x - 3 - 2(3x + 4) = 11x
- Distribute 2 inside the parentheses.
6x - 3 - 6x - 8 = 11x
-11 = 11x
<h3>x = -1</h3>