A car is traveling east at 27.1 m/s at some instant. (a) If its constant acceler

Question

   A car is traveling east at 27.1 m/s at some instant. (a) If its constant acceleration is 0.750m/s2 due east, find its velocity after 8.30 s have elapsed.
1 m/s 2---Select---EastWest

(b) If its constant acceleration is 0.750 m/s2 due west,find its velocity after 8.50 s have elapsed.
3 m/s 4---Select---EastWest (a) If its constant acceleration is 0.750m/s2 due east, find its velocity after 8.30 s have elapsed.
1 m/s 2---Select---EastWest

(b) If its constant acceleration is 0.750 m/s2 due west,find its velocity after 8.50 s have elapsed.
3 m/s 4---Select---EastWest

Explanation / Answer

a)
vf = v0 + at = 27.1m/s + 0.750m/s2 * 8.30s = 33.325 m/s b) vf = v0 - at = 27.1m/s - 0.750m/s2 * 8.50s = 20.725 m/s

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