Answer:
66
Step-by-step explanation:
Answer:
232
Step-by-step explanation:
First you do 220.83 - 18.99 which is 201.84 so you know the price he spent for the miles driven.
Then you divide that number by .87 which gives you 232 for the number of miles driven.
Step-by-step explanation:
5.03709
4.923935
√17
√12
Given:
u = 44 ft/s, the initial upward velocity of the ball
The height in feet after t seconds is
y = 44t - 16t²
Initial time is t₁ = 2 s.
The height at 2 s is
h₁ = 44*2 - 16*(2²) = 24 ft
(i) When the duration is 0.5 s, the final time is
t₂ = 2 +0.5 = 2.5
The height at 2.5 s is
h₂ = 44*2.5 - 16(2.5²) = 10 ft
The average velocity is
v = (10 - 24 ft)/(0.5 s) = -28 ft/s
Answer: - 28 ft/s
(ii) When the duration is 001s, then t₂ = 2.1 s
h₂ = 44*2.1 - 16(2.1²) = 21.84 ft
The average velocity is
v = (21.84 - 24)/0.1 = -21.6 ft/s
Answer: - 21.6 ft/s
(iii) When the duration is 0.05s, t₂ = 2.05 s
h₂ = 44*2.05 - 16(2.05²) = 22.96
Average velocity is
v = (22.96 - 24)/.05 = - 20.8 ft/s
Answer: - 20.8 ft/s
(iv) When the duration is 0.01 s, t₂ = 2.01 s
h₂ = 44*201 - 16(2.01²) = 23.7984 ft
v = (23.7984 - 24)/0.01 = - 20.16 ft/s
Answer: - 20.16 ft/s
As the duration gets smaller, the computed average velocity approaches the true value at 2 s, because it is the derivative of y with respect to t.