(11%) Problem 2: During a very quick stop, a car decelerates at 7.8 m/s². Assume the forward motion of the car correspon

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11 Problem 2 During A Very Quick Stop A Car Decelerates At 7 8 M S Assume The Forward Motion Of The Car Correspon 1 (50.36 KiB) Viewed 62 times

(11%) Problem 2: During a very quick stop, a car decelerates at 7.8 m/s². Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires (and that they do not slip on the pavement). Randomized Variables a=7.8 m/s² r=0.25 m 000=92 rad/s à 20% Part (a) What is the angular acceleration of its tires in rad/s2, assuming they have a radius of 0.25 m and do not slip on the pavement? 20% Part (b) How many revolutions do the tires make before coming to rest, given their initial angular velocity is 92 rad/s? N= sin() cos() cotan() asin() atan() acotan() cosh() tan() acos() sinh() tanh() cotanh() Degrees O Radians Submit Hint 7 8 9 E45 6 1 2 3 + 0 VO HACKSPACE X ( Feedback HOSE I give up! Feedback: 0% deduction per feedback. Hints: 0% deduction per hint. Hints remaining: 2 20% Part (c) How long does the car take to stop completely in seconds? A 20% Part (d) What distance does the car travel in this time in meters? 20% Part (e) What was the car's initial speed in m/s? IND ALEAK Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 5 (0% per attempt) detailed view