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& Secure https//www.webassign.net/web/student/Assignment-Responses/submit?dep 17422213Q10 Notes O Ask Your Te Used -13 points SerCP10 7 P015. 014 S 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 ABC is 231 m, and the car completes the turn in 35.0s (a) Determine the car's speed m/s (b) What is the magnitude and direction of the acceleration when the car is at point 8B magnitude direction m/s counterclockwise from the +x-axis Need Help? Read h Submit Answer Save Progress 12:54 PM

Explanation / Answer

a)

speed, v = length of arc / time taken

So, v = 231/35

or, v = 6.6 m/s

b)

acceleration , a = v^2/R

= 6.6^2/R

Now, length of the arc = pi*R/2 = 231

So, R = 462/pi

So, a = 6.6^2/(462/pi) = 0.296 m/s2 <------- answer

direction = 180 - 35 = 145 deg <------ answer

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