Question:
By running at a speed of 31 km/h how much distance a car will cover in 5 second?
Correct Answer
43.05 meter
Solution And Explanation
Solution
Given,
Speed = 31 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, 31 km/h = 31 × 5/18 m/s
= 31 × 5/18 m/s
= 155/18 = 8.61 m/s
Thus, speed = 8.61 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 8.61 m/s × 5 s = 43.05 m
Thus, distance = 43.05 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 8.61 meter
∴ In 5 second, the distance covered = 8.61 m × 5 = meter
Thus, distance = 43.05 meter Answer
Similar Questions
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(2) At a certain speed a scooty covers a distance of 70 km in 4 hours. How much distance will it cover in 5 hour?
(3) By running at a speed of 20 km/h how much distance a cyclist will cover in 6 second?
(4) By running at a speed of 26 km/h how much distance a car will cover in 5 second?
(5) By running at a speed of 38 km/h how much distance a car will cover in 5 second?
(6) If a car is running with a speed of 60 km/h, then how much distance will it cover in 15 minute 20 second?
(7) Find the distance covered by a moving object in 28 hours if it covers a distance of 78 km in 18 hours.
(8) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 68 km in 17 hours.
(9) At a certain speed a car covers a distance of 78 km in 2 hours. How much distance will it cover in 3 hour?
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