(8%) Problem 1: A car, moving to the left in a straight line in the negative x-d
ID: 1882617 • Letter: #
Question
(8%) Problem 1: A car, moving to the left in a straight line in the negative x-direction. travels a distance d,1 m during time interval -8.5 s. Refer to the figure Otheexpertta.com > 25% Part (a) W hat is the car's average speed, Vavg, in meters per second, during the time interval ? Grade Summa Deductions Potential Late work % Late Potential ry avg 0% 100% 50% 50% tanO cotan asin0) acos0 sinh) sin cos 45 6 atan) acotan) coshOtanh) cotanh0 Submissions Attempts remaining: 1O (1% per attempt) 0 END detailed view Degrees Radians BACKSPACE DEL CLEAR Submit Hint I give up! Hints: 19e deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback - 25% Part (b) What is the sign of the x-component of the car's velocity at any instant during the given time interval? 25% Part (c) What is the value of the x-component of the car's average velocity, vavg meters per second, during the given time interval? 25% Part (d) In this case, must there be an instant at which the speed of the car is equal to its average speed? All content2018 Expert TA, LLCExplanation / Answer
Average speed = total distance /total time
Vavg = 71/8.5 = 8.353 m/s
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