Question:
By running at a speed of 38 km/h how much distance a motor bike will cover in 8 second?
Correct Answer
84.48 meter
Solution And Explanation
Solution
Given,
Speed = 38 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, 38 km/h = 38 × 5/18 m/s
= 38 × 5/18 m/s
= 190/18 = 10.56 m/s
Thus, speed = 10.56 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 10.56 m/s × 8 s = 84.48 m
Thus, distance = 84.48 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 10.56 meter
∴ In 8 second, the distance covered = 10.56 m × 8 = meter
Thus, distance = 84.48 meter Answer
Similar Questions
(1) By running at a speed of 24 km/h how much distance a motor bike will cover in 8 second?
(2) By running at a speed of 8 km/h how much distance an athlete will cover in 10 second?
(3) By running at a speed of 22 km/h how much distance a scooty will cover in 7 second?
(4) Find the distance covered by an athlete in 25 hours if it covers a distance of 60 km in 15 hours.
(5) An athlete takes 10 second to complete a race of 200 meter. Find the speed of the athlete in kilometre per hour.
(6) Find the distance covered by an athlete in 25 hours if it covers a distance of 98 km in 15 hours.
(7) A car covers a distance of 350 km in 10 hours. Find the speed and distance covered in 8 hours by the given car.
(8) Find the distance covered by a scooty in 22 hours if it covers a distance of 84 km in 12 hours.
(9) Find the distance covered by a cyclist in 21 hours if it covers a distance of 80 km in 11 hours.
(10) Find the distance covered by a bus in 24 hours if it covers a distance of 66 km in 14 hours.