Ask Question
17 December, 18:35

An electric vehicle starts from rest and accelerates at a rate of 2.3 m/s2 in a straight line until it reaches a speed of 18 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. (a) How much time elapses from start to stop

+1
Answers (1)
  1. 17 December, 19:29
    0
    25.83s

    Explanation:

    Time taken by car to reach from 0 m/s to 18m/s

    Using the kinematic equation,

    V = u + at

    18=0 + 2.3 (t)

    t = 18/2.3 = 7.83s

    Time to stop the top speed

    V = u + at

    18=0 + 1 (t)

    t = 18 / 1 = 18 s

    total time is

    =7.83s + 18s

    = 25.83s
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “An electric vehicle starts from rest and accelerates at a rate of 2.3 m/s2 in a straight line until it reaches a speed of 18 m/s. The ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers