Question:
By running at a speed of 20 km/h how much distance a scooty will cover in 7 second?
Correct Answer
38.92 meter
Solution And Explanation
Solution
Given,
Speed = 20 km/h
Time = 7 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, 20 km/h = 20 × 5/18 m/s
= 20 × 5/18 m/s
= 100/18 = 5.56 m/s
Thus, speed = 5.56 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 5.56 m/s × 7 s = 38.92 m
Thus, distance = 38.92 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 5.56 meter
∴ In 7 second, the distance covered = 5.56 m × 7 = meter
Thus, distance = 38.92 meter Answer
Similar Questions
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(2) By running at a speed of 31 km/h how much distance a car will cover in 5 second?
(3) Find the distance covered by a bus in 24 hours if it covers a distance of 56 km in 14 hours.
(4) By running at a speed of 11 km/h how much distance a motor bike will cover in 8 second?
(5) Find the distance covered by a ball in 26 hours if it covers a distance of 98 km in 16 hours.
(6) By traveling a speed of 18 km/h, a bike completes a journey in 25 minute, then find the distance covered by him and how much time it will take cover a distance of 120 km?
(7) By running at a speed of 46 km/h how much distance a car will cover in 5 second?
(8) By running at a speed of 21 km/h how much distance a scooty will cover in 7 second?
(9) At a certain speed a scooty covers a distance of 66 km in 4 hours. How much distance will it cover in 5 hour?
(10) By running at a speed of 6 km/h how much distance a car will cover in 5 second?