Answer:
Step-by-step explanation:
Key features
when t = 0
the initial height is 143/3 = 47⅔ ft
initial velocity is -310/3 = -103⅓ ft/s (downward)
initial acceleration is 2(64) = 128 ft/s² (upward)
I would not like to ride this roller coaster!
that's about four times the acceleration of gravity, and it only increases as the car gets to the bottom of the curve at t = 1 s
For part 3
I'm not sure what they mean by "not realistic"
while the initial acceleration is high. the acceleration at t = 1 is zero except that in 'reality' the car would have to be going through a curve to change direction from down to up. That would create very high centripetal acceleration and therefore centripetal forces.
Answer:
y=x and y=2/3x
Step-by-step explanation:
Every point on line a has an equal x and y value so y=x. For line b, the y value of every point is 2/3 of the x value. So at (3,2) 2/3 of 3(the x value) is 2(the y value).
Pedro did KCF (Keychain flip)
Step 1&2 are correct as he did the process right.
So, he must of multiplied or simplified wrong
So, 4×8= 32
And 7×8=56
As you may have noticed he has gotten 20/50 instead of 32/56
Where Pedro messed up is step 3
HOPE THIS HELPER (:!
Answer:
Mixed fraction: 1 and 3/4
Improper fraction: 7/4
Step-by-step explanation:
Mixed: You have 1 whole circle and only three out of four pieces of an other circle
Improper: Add the colored pieces of the two circles together but because the circles are divided into fourths, the number four is the denominator or bottom number. Therefore, you get seven over four(7/4) as the improper fraction
Answer:
h=7ft
Step-by-step explanation:
sinФ=opposite/hypotenuse
sin45°=5/h
0.71=5/h
multiply via by h
0.71h=(5/h)h
h cancel h it remains 5
0.71h=5
divide through by 0.71
0.71h/0.71=5/0.71
h=7.04ft
h=7ft approximately