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April 20, 2014

Homework Help: physAH!

Posted by opp on Monday, February 20, 2012 at 3:53pm.

A car that is initially at rest moves along a circular path with a constant tangential acceleration component of 2.07 m/s2. The circular path has a radius of 42.4 m. The initial position of the car is at the far west location on the circle and the initial velocity is to the north.
(a) After the car has traveled 1/4 of the circumference, what is the speed of the car?
1 m/s

(b) At this point, what is the radial acceleration component of the car?
2 m/s2

(c) At this same point, what is the total acceleration of the car?
magnitude 3 m/s
direction 4 east of south

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