You are driving through town at 13.0 m/s when suddenly a ball rolls out in front

Question

You are driving through town at 13.0 m/s when suddenly a ball rolls out in front of you. You apply the brakes and begin decelerating at 3.0 m/s2. please help with part c :

Find the speed of your car when you have traveled half the distance in part A.

You are driving through town at 13.0 m/s when suddenly a ball rolls out in front of you. You apply the brakes and begin decelerating at 3.0 m/s2. please help with part c :

Find the speed of your car when you have traveled half the distance in part A.

Express your answer to three significant figures.

You ara criving tough town at 13.0 m/s whan Part A o logo uddany a bal rols out in front of you. You appy brakes and begin decelerating at 3.0 m/52 How far do you travel before stopping? Express your answer using two significant figures. 2-28 m Corect Part B When you have traveled only hat the distanoo in part A, is your speod 65 m/s, greater than 6.5 m/s, or ess than 85 m/s? 65 m/s greater than 6. ms lika gan 6.5 m/s Part C Find the speed of your car when you have traveled half the distance in part A. Express your answer to three significant figures Conmect Submit Provide Feedback Next >

Explanation / Answer

C)

vi = 13.0 m/s

a = -3.0 m/s^2

d = 28/2 = 14 m

use:

vf^2 = vi^2 + 2*a*d

vf^2 = 13.0^2 + 2*(-3.0)*14

vf^2 = 169 - 84

vf^2 = 85

vf = 9.22 m/s

Answer: 9.22 m/s

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

---

---

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