Apps Math Tutoeing Cente Google\'s 19th Birthd: D Fall 2018/ Spring 0 R Gede car

Question

Apps Math Tutoeing Cente Google's 19th Birthd: D Fall 2018/ Spring 0 R Gede carulator fiqure below. When the car changes speed it d nce travels as a function of time is show e appropriate choice for each statement. 1000 E 800 600 400 200 20 40 60 80 Time (s) The speed is zero at 23 sec. The speed at 48 sec is the speed at 76 sec. 7 At 76 sec, the speed is as high as it gets. The acceleration magnitude at 15 sec is..... the acceleration magnitude at 37 sec. The x-acceleration is . zero at 50 sec | The x-acceleration is zero at 58 sec. Submit Answer Tries 0/12 Using the graph above, calculate the average speed of the car for the period from 0 to 50.0 s Submit Answer Tries 0/12 . Type here to search

Explanation / Answer

1) The speed is equal to zero at 23 sec

Reason - The slope is zero and is constant

2) The speed at 48 sec is greater than speed at 76 sec ( not sure about this one)

Reason - slope is more sharper at 48 sec mark

3) At 76 sec, the speed is as high as it gets - False

Reason - the slope is sharper between 40 to 60

4) The acceleration magnitude at 15 sec is greater than the acceleration magnitude at 37 sec

Reason - Because the curve slope is changing sharply at 15 sec than at 37 sec

5) The x-acceleration is less than zero at 58 sec

Reason - At 58 seconds, the slope is decreasing, which means negative acceleration

6) The x-acceleration is equal to zero at 50 sec

Reason - as slope is constant, velocity is constant so no acceleration

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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