A car accelerates uniformly from 0 km/hr to 60 km/hr in 4.5 seconds. Which one of the following choices best represents the acceleration of

Question

A car accelerates uniformly from 0 km/hr to 60 km/hr in 4.5 seconds. Which one of the following choices best represents the acceleration of the car?
(A) 13.3 m/s2
(B) 9.8 m/s2
(C) 4.8 m/s2
(D) 3.7 m/s2
(E) 0.37 m/s2
please show work

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Philomena 4 years 2021-08-31T10:10:56+00:00 1 Answers 13 views 0

Answers ( )

  1. Farah
    0
    2021-08-31T10:12:04+00:00
    Reply

    Answer:

    The acceleration of the car is 3.7\ m/s^2.

    Explanation:

    It is given that,

    Initial speed of the car, u = 0

    Final speed of the car, v = 60 km/h = 16.66 m/s

    Time, t = 4.5 s

    We need to find the acceleration of the car. It is equal to the change in velocity divided by time taken. It can be given by :

    a=\dfrac{v-u}{t}\\\\a=\dfrac{16.66-0}{4.5}\\\\a=3.7\ m/s^2

    So, the acceleration of the car is 3.7\ m/s^2. Hence, this is the required solution.

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