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1 year ago

A jogger runs a mile in 8.92 min. Calculate the speed in:

Chemistry

1 answer:

Reil [10]1 year ago

3 0

A. The speed (m/s) of the car is 3 m/s

B. The speed (m/min) of the car is 180.4 m/min

A. The speed (Km/h) of the car is 10.8 Km/h

<h3>What is speed? </h3>

Speed is the distance travelled per unit. Mathematically, it can be expressed as:

Speed = distance / time

<h3>How to determine the speed</h3>

A. The speed (m/s) can be obtained as follow:

Distance = 1 mile = 1609.34 m
Time = 8.92 mins = 8.92 × 60 = 535.2 s
Speed (m/s) =?

Speed = distance / time

Speed = 1609.34 / 535.2

Speed (m/s) = 3 m/s

B. The speed (m/min) can be obtained as follow:

Distance = 1 mile = 1609.34 m
Time = 8.92 mins
Speed (m/min) =?

Speed = distance / time

Speed = 1609.34 / 8.92

Speed (m/min) = 180.4 m/min

C. The speed (Km/h) can be obtained as follow:

Distance = 1 mile = 1.60934 Km
Time = 8.92 mins = 8.92 / 60 = 0.149 h
Speed (Km/h) =?

Speed = distance / time

Speed = 1.60934 / 0.149

Speed (Km/h) = 10.8 Km/h

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