A car enters a freeway with a speed of 6.5 m/s and accelerates to a speed of 24 m/s in 3.5 min. How far does the car travel while it is acce

Question

A car enters a freeway with a speed of 6.5 m/s and accelerates to a speed of 24 m/s in 3.5 min. How far does the car travel while it is accelerating? (Hint: find the acceleration first)

a 3205.5 m
b 1548.75 m
c 76.13 m
d 761.3 m

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Nem 3 years 2021-07-14T03:09:26+00:00 1 Answers 187 views 0

Answers ( )

    0
    2021-07-14T03:11:22+00:00

    Explanation:

    Using Equations of Motion :

    (1) v = u + at

    24 = 6.5 + a * 210

    a (Acceleration) = 0.083 m/s^2

    (2) v^2 = u^2 + 2aS

    S = 576 – 42.25 / 0.166

    S (Distance travelled) = 3215.3 m

    (Option A seems a typo since the answer is 3215.3 m)

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