At time t = 0 s, automobile A is traveling at a speed of 18 m/s along a straight road and is picking up speed with an acceleration that has a magnitude of 3.5 m/s2 as in part a of the figure. At t 5 0 s, automobile B is traveling at a speed of 18 m/s in uniform circular motion as it negotiates a turn (part b of the figure). It has a centripetal acceleration whose magnitude is also 3.5 m/s2. Concepts:
(i) Which automobile has a constant acceleration?
(ii) For which automobile do the equations of
(a) Automobile A

(b) Automobile B

Kinematics apply? Calculations: Determine the speed of each automobile when t = 2 s.

Transcribed Image Text:

t=2.0 s t=0s