Ask Question
23 September, 12:53

While entering a freeway, a car accelerates from rest at a rate of 2.1 m/s^2 for 14.5 s. How far does the car travel in those 14.5 s, in meters?

What is the car's final velocity, in meters per second?

+5
Answers (1)
  1. 23 September, 14:13
    0
    220.8 m

    30.5 m/s

    Explanation:

    a = acceleration of the car = 2.1 m/s²

    t = time of travel = 14.5 s

    x = displacement of the car

    v₀ = initial velocity of the car = 0 m/s

    Displacement of the car is given as

    x = v₀ t + (0.5) a t²

    Inserting the values

    x = (0) (14.5) + (0.5) (2.1) (14.5) ²

    x = 220.8 m

    v = final velocity of the car

    Final velocity of the car is given as

    v = v₀ + at

    v = 0 + (2.1) (14.5)

    v = 30.5 m/s
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “While entering a freeway, a car accelerates from rest at a rate of 2.1 m/s^2 for 14.5 s. How far does the car travel in those 14.5 s, in ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers