(a) A race car moves such that its position fits the relationship x = (5.5 m/s)t +...
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(a) A race car moves such that its position fits the relationship x = (5.5 m/s)t + (0.65 m/s3)t3 where x is measured in meters and t in seconds.
(b) Determine the instantaneous velocity of the car at t = 3.8 s, using time intervals of 0.40 s, 0.20 s, and 0.10 s. (In order to better see the limiting process keep at least three decimal places in your answer.)
Δt = 0.40 s | m/s (Use the interval from t = 3.60 s to 4.00 s.) |
Δt = 0.20 s | m/s (Use the interval from t = 3.70 s to 3.90 s.) |
Δt = 0.10 s | m/s (Use the interval from t = 3.75 s to 3.85 s.) |
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