Question:
By running at a speed of 23 km/h how much distance a scooty will cover in 7 second?
Correct Answer
44.73 meter
Solution And Explanation
Solution
Given,
Speed = 23 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, 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 × 7 s = 44.73 m
Thus, distance = 44.73 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 6.39 meter
∴ In 7 second, the distance covered = 6.39 m × 7 = meter
Thus, distance = 44.73 meter Answer
Similar Questions
(1) By running at a speed of 37 km/h how much distance a cyclist will cover in 6 second?
(2) Find the distance covered by a scooty in 22 hours if it covers a distance of 52 km in 12 hours.
(3) By running at a speed of 19 km/h how much distance a scooty will cover in 7 second?
(4) At a certain speed a cyclist covers a distance of 48 km in 3 hours. How much distance will it cover in 4 hour?
(5) By running at a speed of 39 km/h how much distance a motor bike will cover in 8 second?
(6) By running at a speed of 17 km/h how much distance a scooty will cover in 7 second?
(7) An athlete takes 10 second to complete a race of 200 meter. Find the speed of the athlete in kilometre per hour.
(8) Find the distance covered by a moving object in 28 hours if it covers a distance of 100 km in 18 hours.
(9) By running at a speed of 21 km/h how much distance a cyclist will cover in 6 second?
(10) By running at a speed of 40 km/h how much distance a scooty will cover in 7 second?