PLEASE FULLY ANSWER B AND C. THANKS! (7%) Problem 4: A car begins at rest at t0

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PLEASE FULLY ANSWER B AND C. THANKS!

(7%) Problem 4: A car begins at rest at t0 = 0. The car starts moving and finally covers a distance d = 753 m in a time tf= 159 s. In a coordinate system with north being the positive x-direction, the car's motion is in the southern direction (see figure) south(-x north( time, t,0 ©theexpertta.com 25% Part (a) What was the car's average speed during this period, in meters per second? 25% Part (b) What was the car's displacement in the x-direction x, in meters, during this period? Grade Summary Deductions Potential 0% 100% cos0 cotan0 asin) acos0 atan0 acotan inh0 coshO tanhO cotanhO Degrees Radians sin Submissions Attempts remaining: 3 5% per attempt) detailed view sinhO 0 END BACKSPACE DEL CLEAR Submit Hint I give up! Hints: 5% deduction per hint. Hints remaining: 2 Feedback: 5% deduction per feedback.

Explanation / Answer

here,

distance travelled , d = 753 m

time taken , t = tf- t0 = 159 s

a)

the average speed , Vavg = d/t

Vavg = 753/159

Vavg = 4.74 m/s

b)

the car's displacement is - 753 i m

c)

the car's average velocity , Vavg = - 4.74 i m/s

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