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28 September, 04:01

During a hard sneeze, your eyes might shut for 0.50 s. If you are driving a car at 90 km/h during such a sneeze, how far does the car move during that time?

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  1. 28 September, 07:58
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    12.5 m.

    Explanation:

    Speed: This can be defined as the rate of change of distance. The S. I unit of speed is m/s. Mathematically it can be expressed as,

    Speed = distance/time

    S = d/t ... Equation 1

    d = S*t ... Equation 2.

    Where S = speed of the car, d = distance, t = time taken to shut the eye during sneezing

    Given: S = 90 km/h, t = 0.50 s.

    Conversion: 90 km/h ⇒ m/s = 90 (1000/3600) = 25 m/s.

    S = 25 m/s.

    Substitute into equation 2.

    d = 25*0.50

    d = 12.5 m.

    Hence the car will move 12.5 m during that time
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