Chrome File Edit View History Bookmarks People Window Help e HW 7209 x C l Guide

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Chrome File Edit View History Bookmarks People Window Help e HW 7209 x C l Guided solutio x O www.webassign.net/web/student/Assignment Responses Mast?dep 16215998 Chrome Fie Edit View History TP015. A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in the figure below. The length of the arc Aac is 215 m, completes the turn in 33.0s. (a) Determine the car's speed. ob) What is the magnitude and drection ofthe acceleration when the ear isat point countercockwise from the +Araxis Need Help?

Explanation / Answer

length of arc ABC= 215 m

time,t = 33 s

a) car speed,V = 215 / 33 = 6.515 m/s

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b) arc length = 215 m

(1/4)*circumference = 215

(1/4)*2*pi*r = 215

r (radius) = 215*4 / 2*pi

r = 136.94 m

a ( acceleration) = V2 / r

a = (6.515)2 /136.94 = 0.3099 m/s2    towards the center

direction ,@ = 35 + 90= 125 degree

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