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:
Step-by-step explanation:
If f(n) = 8n - 3
f(5) = 8(5) - 3
= 40 - 3
= 37
Answer:
75
Step-by-step explanation:
45*1/3=15
15*5=75
Answer:
The answer is y= 11
Explanation:
I hope this answered your question
\(0wo)/