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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Physics

18 March, 16:59

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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Valery Walsh · Answer 1

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