Question:
By running at a speed of 23 km/h how much distance a car will cover in 5 second?
Correct Answer
31.95 meter
Solution And Explanation
Solution
Given,
Speed = 23 km/h
Time = 5 second
Thus, distance = ?
Here the speed is given in the kilometer per hour while the time is in the second. So, for the ease of calculation, the speed should be converted into meter per second.
Conversion of the speed from kilometer per hour to meter per second
To convert kilometer per hour, the speed is multiplied by 5/18
Therefore, 23 km/h = 23 × 5/18 m/s
= 23 × 5/18 m/s
= 115/18 = 6.39 m/s
Thus, speed = 6.39 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 6.39 m/s × 5 s = 31.95 m
Thus, distance = 31.95 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 6.39 meter
∴ In 5 second, the distance covered = 6.39 m × 5 = meter
Thus, distance = 31.95 meter Answer
Similar Questions
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(2) By running at a speed of 15 km/h how much distance a motor bike will cover in 8 second?
(3) Find the distance covered by a bus in 24 hours if it covers a distance of 54 km in 14 hours.
(4) By running at a speed of 40 km/h how much distance a cyclist will cover in 6 second?
(5) At a certain speed a scooty covers a distance of 98 km in 4 hours. How much distance will it cover in 5 hour?
(6) At a certain speed a car covers a distance of 14 km in 2 hours. How much distance will it cover in 3 hour?
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(8) At a certain speed a car covers a distance of 18 km in 2 hours. How much distance will it cover in 3 hour?
(9) Find the distance covered by a bus in 24 hours if it covers a distance of 62 km in 14 hours.
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