A car travels a certain distance along a straight roaa un ne+x airection). The d

Question

A car travels a certain distance along a straight roaa un ne+x airection). The distance the car travels as a function of time is snown in the fiqure below. When the car chanqes speed it does so uniformly, Select the appropriate choice for each statement 1000 600 400 200 20 40 60 80 Time (s) Greater thanThe acceleration magnitude at 37 sec is the acceleration magnitude at 15 sec. Equal to The x-acceleration is zero at 58 sec. Equal to The x-acceleration is zero at 23 sec Equal toThe speed is zero at 20 sec Less than True By extrapolating the straight sections of the graph, you can estimate the time during which the speed is changing. This, with the change in speed, should let you estimate the magnitude of the acceleration The speed at 76 sec is... the speed at 4 sec At 46 sec, the speed is as high as it gets Type here to search .55 PM 9/13/2018

Explanation / Answer

At 37 sec the graph slope is more than that of at 15 sec. So the acceleration at 37 sec is greater than that of at 15 sec.

As the distance is not zero at 58 sec, the acceleration is not equal to zero.

As the distance moved by car is zero at 23 seconds, the acceleration is also equal to zero.

As the distance moved by car is zero at 23 seconds, the speed is also equal to zero.

As the slope is more at 46 sec, the speed is as high as it gets is True.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.