Question:
By running at a speed of 28 km/h how much distance a motor bike will cover in 8 second?
Correct Answer
62.24 meter
Solution And Explanation
Solution
Given,
Speed = 28 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, 28 km/h = 28 × 5/18 m/s
= 28 × 5/18 m/s
= 140/18 = 7.78 m/s
Thus, speed = 7.78 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 7.78 m/s × 8 s = 62.24 m
Thus, distance = 62.24 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 7.78 meter
∴ In 8 second, the distance covered = 7.78 m × 8 = meter
Thus, distance = 62.24 meter Answer
Similar Questions
(1) At a certain speed a cyclist covers a distance of 96 km in 3 hours. How much distance will it cover in 4 hour?
(2) At a certain speed a scooty covers a distance of 2 km in 4 hours. How much distance will it cover in 5 hour?
(3) Find the distance covered by an athlete in 25 hours if it covers a distance of 50 km in 15 hours.
(4) At a certain speed a cyclist covers a distance of 72 km in 3 hours. How much distance will it cover in 4 hour?
(5) Find the distance covered by a bus in 24 hours if it covers a distance of 60 km in 14 hours.
(6) By running at a speed of 48 km/h how much distance a motor bike will cover in 8 second?
(7) Find the distance covered by an athlete in 25 hours if it covers a distance of 56 km in 15 hours.
(8) By running at a speed of 27 km/h how much distance a car will cover in 5 second?
(9) Find the distance covered by a motor bike in 23 hours if it covers a distance of 60 km in 13 hours.
(10) By running at a speed of 25 km/h how much distance an athlete will cover in 10 second?