Speed vs time for 2008 206 Corvette 250 GA.L1.4-02 The graph shows the speed as a function of time for a 200 corvette as it accelerates from rest to
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Screenshot (28).png

I need help with this problem.

I

got

A. 3 seconds

B. 1G: 3s, 2G: 3 s, 3G: 4 s, 4G: 8 s, 5G: 42s

C. I used the equation a=changevelocity/changetime sooo 60 mph-0mph/.025 hr = 2400 mph^2 (I'm not sure if that's the way I should have done that for conversions or if I messed up there because it goes wonky from here for me).

D. I looked at the graph and got about 123 mph at 11 seconds. Should I do that a different way?

E. So I found acceleration of all the gears, but this is where I think maybe I messed up with C. Because G1: 2500, G2: 1200, G3: 909.09 G4: 567.16 and G5: 125.7

Then I used the equation X=Vi(t)+1/2a(t)^2 and I did that X1,X2.....X5 and added those values and came up with like 78.35 miles, which cannot be right because we are talking about 60 seconds so I feel like I buggered up with my time or something.

Screenshot (28).png

Speed vs time for 2008 206 Corvette
250
GA.L1.4-02
The graph shows the speed as a function of time for a
200
corvette as it accelerates from rest to its top speed of
about 202 mph on a straight horizontal road.
(@) About how many seconds does it take this
150
corvette to go from 0 mph to 60 mph.
v. (mph)
Speed in ist gear
Speed in and gear
(b) About what percentage of the total time
Spend in Ird gear
does the corvette spend in each gear?
105
Speed in 4th gear
Speed in Sch gear
(c) Estimate the average acceleration in 1st gear.
(d) What is the speed of the corvette at 11 sec-
onds?
50
(e) Estimate the total distance the corvette
travels from its starting location to the loca-
tion when it reaches the top speed (end of
10
20
DE
40
50
70
curve).
time (seconds)
(f) Use the Order of Magnitude sense-making technique to check your answer to part (e).

Top Answer

a) 3 seconds. b) explained below... View the full answer

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