13 An object moves along the x axis according to the equation x = 3.75t2 - 2.00t+ 3.00, where x is in meters and t is in seconds (a) Determine the average speed between t = 1.80 s and t = 3.80 s. m/s (b) Determine the instantaneous speed at t = 1.80 s. m/s Determine the instantaneous speed at t = 3.80 s. m/s (c) Determine the average acceleration between t = 1.80 s and t = 3.80 s. m/s2 (d) Determine the instantaneous acceleration at t = 1.80 s. m/s² Determine the instantaneous acceleration at t = 3.80 s. m/s² (e) At what time is the object at rest? S
13 An object moves along the x axis according to the equation x = 3.75t2 - 2.00t+ 3.00, where x is in meters and t is in seconds (a) Determine the average speed between t = 1.80 s and t = 3.80 s. m/s (b) Determine the instantaneous speed at t = 1.80 s. m/s Determine the instantaneous speed at t = 3.80 s. m/s (c) Determine the average acceleration between t = 1.80 s and t = 3.80 s. m/s2 (d) Determine the instantaneous acceleration at t = 1.80 s. m/s² Determine the instantaneous acceleration at t = 3.80 s. m/s² (e) At what time is the object at rest? S
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