A car speed increases from 40 km/hr to km/hr in 5 sec. Calcuate the acceleration of car:​

Question

A car speed increases from 40 km/hr to km/hr in 5 sec. Calcuate the acceleration of car:​

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Cherry 3 years 2021-08-01T06:43:40+00:00 1 Answers 15 views 0

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  1. dangkhoa
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    2021-08-01T06:45:07+00:00
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    Answer:

    14400km/h

    Step-by-step explanation:

    Given that

    The speed of the car increased from 40 km/hr to 60 km/hr

    And, the time taken is 5 seconds

    we need to find out the acceleration of the car

    So,

    Here

    u =  initial velocity =40km/h

    v = final velocity =60km/h

    t = time = 5s =5 ÷ 3600h

    a = acceleration

    Now as we know that

    a = (v – u) ÷ t

    = (60 – 40) ÷ (5 ÷ 3600)

    = (20 × 3600) ÷ 5

    = 14400km/h

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