Question:
By running at a speed of 18 km/h how much distance a motor bike will cover in 8 second?
Correct Answer
40 meter
Solution And Explanation
Solution
Given,
Speed = 18 km/h
Time = 8 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, 18 km/h = 18 × 5/18 m/s
= 18 × 5/18 m/s
= 90/18 = 5 m/s
Thus, speed = 5 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 5 m/s × 8 s = 40 m
Thus, distance = 40 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 5 meter
∴ In 8 second, the distance covered = 5 m × 8 = meter
Thus, distance = 40 meter Answer
Similar Questions
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(2) Find the distance covered by a scooty in 22 hours if it covers a distance of 62 km in 12 hours.
(3) By running at a speed of 41 km/h how much distance a motor bike will cover in 8 second?
(4) An athlete takes 10 second to complete a race of 200 meter. Find the speed of the athlete in kilometre per hour.
(5) By running at a speed of 22 km/h how much distance a motor bike will cover in 8 second?
(6) By running at a speed of 11 km/h how much distance an athlete will cover in 10 second?
(7) Find the distance covered by a ball in 26 hours if it covers a distance of 68 km in 16 hours.
(8) By running at a speed of 43 km/h how much distance a motor bike will cover in 8 second?
(9) At a certain speed a scooty covers a distance of 82 km in 4 hours. How much distance will it cover in 5 hour?
(10) If a car is running with a speed of 90 km/h, then how much distance will it cover in 1 hour 15 minute?