5. A car completes a 180° turn at constant speed as shown. (a) Draw the direction of the average acceleration vector of the car over the turn. (b) Draw the approximate average acceleration vector of the car if instead its speed doubled over the turn.
5. A car completes a 180° turn at constant speed as shown. (a) Draw the direction of the average acceleration vector of the car over the turn. (b) Draw the approximate average acceleration vector of the car if instead its speed doubled over the turn.
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Transcribed Image Text:5. A car completes a 180° turn at constant speed as shown.
(a) Draw the direction of the average acceleration vector of the
car over the turn. (b) Draw the approximate average
acceleration vector of the car if instead its speed doubled over
the turn.
Expert Solution
Step 1
(a)
Given the car is moving with constant speed.
So a car is said to be in a uniform circular motion, if its velocity is constant, and it took a turn of 180 degrees.
Now in a circular motion, centripetal force will act on the car, whose direction will be towards the center. Therefore, the direction of centripetal acceleration will also towards the center. Therefore, the direction of the average acceleration vector of the car overturn will be towards the center.
The average acceleration vector can be drawn as,
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