The formula for the vertical height, h, attained with a vertical take off speed of u is
u² - 2gh = 0
where
g = 9.8 m/s², acceleration due to gravity.
Because h = 1.29 m, therefore
u² = 2*9.8*1.39 = 27.244
u = 5.2196 m/s
Also, the time of flight, t, required when the vertical take-off speed is u is given by
ut - 0.5gt² = 0.
Therefore
5.2196t - 0.5*9.8*t² = 0
5.2196t - 4.9t² = 0
t(5.2196 - 4.9t) = 0
t = 0, or t = 5.2196/4.9 = 1.0652 s
t = 0 corresponds to take-off.
t = 1.0652 s corresponds to landing.
The hang time is 1.0652 s.
Answer:
Take-off speed = 5.22 m/s (nearest hundredth)
Hang time = 1.065 s (nearest thousandth)
Answer:
$65 each month
Step-by-step explanation: 1170/18=65
Answer:
2x is your slope and -8 is your y intercept
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
840÷8=105
This is your information...
Length: 2x + 7
Width: 3x + 8y
Perimeter: 2(l + w) ...or... 2l + 2w
Now let's substitute...
2(l + w)
l = 2x + 7
w = 3x + 8y
2(2x+7+3x+8y)
Now combine the like terms:
2(5x+7+8y)
Now distribute the number 2:
10x+14+16y
That is the perimeter
I HOPE THIS HELPED!!!! :D ;D