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10 December, 23:43

While entering a freeway, a car accelerates from rest at a rate of 4.8 m/s2 for 12.0 s. Hint: on all these kinematic problems, keep and check your units. Check whether the answer is reasonable. You can always check to see if your answer satisfies other kinematic equations.

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  1. 11 December, 00:06
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    The car reaches the final speed of 207.36 km/h

    As it is less than the top speed of many cars, Yes, the answer is reasonable

    Explanation:

    V = U + A*T. where

    V is final velocity

    U is initial velocity

    A is acceleration

    T is time

    (0) + (12) (4.8) = 57.6 m/s

    57.6 m/s = 207.36 km/h
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