Ask Question
13 June, 22:43

You're driving at 70 km/h when you apply constant acceleration to pass another car. six seconds later, you're doing 80 km/h. how far did you go in this time?

+5
Answers (1)
  1. 14 June, 00:56
    0
    To solve this problem, we must use the equations of motion. We are given the following values:

    vi = initial velocity = 70 km / h

    vf = final velocity = 80 km / h

    t = time taken = 6 s = (6 / 3600) h

    d = distance travelled = ?

    a = acceleration = ?

    Specifically, the formulas we have to use are:

    a = (vf - vi) / t

    d = vi * t + 0.5 a t^2

    So first, solving for the acceleration a:

    a = (80 - 70) / (6 / 3600)

    a = 6,000 km / h^2 = 0.46 m/s^2

    Now solving for d:

    d = 70 (6 / 3600) + 0.5 (6000) (6 / 3600) ^2

    d = 0.125 km

    or

    d = 125 m
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “You're driving at 70 km/h when you apply constant acceleration to pass another car. six seconds later, you're doing 80 km/h. how far did ...” 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