An object moves along the x axis according to the equation x-2.852-2.00+ 3.00, where x is in meters and t is in seconds. (a) Determine the average speed between t-2.70 s and t-3.90 s. 16.81 m/s (b) Determine the instantaneous speed at t-2.70 s. 13.39 m/s Determine the instantaneous speed at t-3.90 s. 20 23 m/s. (c) Determine the average acceleration between t-2.70s and t-3.90 s. 5.70 ✔ m/s² (d) Determine the instantaneous acceleration at t-2.70 s. 5.70 m/s²
An object moves along the x axis according to the equation x-2.852-2.00+ 3.00, where x is in meters and t is in seconds. (a) Determine the average speed between t-2.70 s and t-3.90 s. 16.81 m/s (b) Determine the instantaneous speed at t-2.70 s. 13.39 m/s Determine the instantaneous speed at t-3.90 s. 20 23 m/s. (c) Determine the average acceleration between t-2.70s and t-3.90 s. 5.70 ✔ m/s² (d) Determine the instantaneous acceleration at t-2.70 s. 5.70 m/s²
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Transcribed Image Text:An object moves along the x axis according to the equation x 2.852-2.00 +3.00, where x is in meters and t is in seconds.
(a) Determine the average speed between t-2.70 s and t - 3.90 s.
16.81
✔ m/s
(b) Determine the instantaneous speed at t - 2.70 s.
13.39
m/s
Determine the instantaneous speed at t-3.90 s.
20:23
m/s
(c) Determine the average acceleration between t-2.70s and t - 3.90 s.
5.70
m/s²
(d) Determine the instantaneous acceleration at r - 2.70 s.
5.70
✔ m/s?
Determine the instantaneous acceleration at t-3.90 s.
5.70
✓ m/s²
(e) At what time is the object at rest?
0.74
xs
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