Question:
By running at a speed of 37 km/h how much distance a car will cover in 5 second?
Correct Answer
51.4 meter
Solution And Explanation
Solution
Given,
Speed = 37 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, 37 km/h = 37 × 5/18 m/s
= 37 × 5/18 m/s
= 185/18 = 10.28 m/s
Thus, speed = 10.28 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 10.28 m/s × 5 s = 51.4 m
Thus, distance = 51.4 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 10.28 meter
∴ In 5 second, the distance covered = 10.28 m × 5 = meter
Thus, distance = 51.4 meter Answer
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(2) Find the distance covered by a scooty in 22 hours if it covers a distance of 68 km in 12 hours.
(3) By running at a speed of 18 km/h how much distance a car will cover in 5 second?
(4) At a certain speed a cyclist covers a distance of 92 km in 3 hours. How much distance will it cover in 4 hour?
(5) At a certain speed a car covers a distance of 6 km in 2 hours. How much distance will it cover in 3 hour?
(6) An athlete takes 15 hours to finish a race of 75 km. Calculate the speed of athlete in meter per second.
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(8) A car covers a distance of 350 km in 10 hours. Find the speed and distance covered in 8 hours by the given car.
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