Question:
By running at a speed of 7 km/h how much distance a bus will cover in 9 second?
Correct Answer
17.46 meter
Solution And Explanation
Solution
Given,
Speed = 7 km/h
Time = 9 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, 7 km/h = 7 × 5/18 m/s
= 7 × 5/18 m/s
= 35/18 = 1.94 m/s
Thus, speed = 1.94 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 1.94 m/s × 9 s = 17.46 m
Thus, distance = 17.46 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 1.94 meter
∴ In 9 second, the distance covered = 1.94 m × 9 = meter
Thus, distance = 17.46 meter Answer
Similar Questions
(1) At a certain speed a cyclist covers a distance of 60 km in 3 hours. How much distance will it cover in 4 hour?
(2) By running at a speed of 39 km/h how much distance a cyclist will cover in 6 second?
(3) By running at a speed of 44 km/h how much distance a bus will cover in 9 second?
(4) By running at a speed of 25 km/h how much distance a car will cover in 5 second?
(5) 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?
(6) Find the distance covered by a scooty in 22 hours if it covers a distance of 56 km in 12 hours.
(7) By running at a speed of 50 km/h how much distance a motor bike will cover in 8 second?
(8) At a certain speed a cyclist covers a distance of 94 km in 3 hours. How much distance will it cover in 4 hour?
(9) By running at a speed of 9 km/h how much distance a motor bike will cover in 8 second?
(10) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 90 km in 17 hours.