Question:
By running at a speed of 19 km/h how much distance an athlete will cover in 10 second?
Correct Answer
52.8 meter
Solution And Explanation
Solution
Given,
Speed = 19 km/h
Time = 10 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, 19 km/h = 19 × 5/18 m/s
= 19 × 5/18 m/s
= 95/18 = 5.28 m/s
Thus, speed = 5.28 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 5.28 m/s × 10 s = 52.8 m
Thus, distance = 52.8 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 5.28 meter
∴ In 10 second, the distance covered = 5.28 m × 10 = meter
Thus, distance = 52.8 meter Answer
Similar Questions
(1) By running at a speed of 35 km/h how much distance an athlete will cover in 10 second?
(2) At a certain speed a scooty covers a distance of 44 km in 4 hours. How much distance will it cover in 5 hour?
(3) If a car is running with a speed of 90 km/h, then how much distance will it cover in 1 hour 15 minute?
(4) Find the distance covered by a car in 20 hours if it covers a distance of 98 km in 10 hours.
(5) At a certain speed a cyclist covers a distance of 64 km in 3 hours. How much distance will it cover in 4 hour?
(6) At a certain speed a car covers a distance of 30 km in 2 hours. How much distance will it cover in 3 hour?
(7) At a certain speed a car covers a distance of 96 km in 2 hours. How much distance will it cover in 3 hour?
(8) By running at a speed of 8 km/h how much distance an athlete will cover in 10 second?
(9) Find the distance covered by a motor bike in 23 hours if it covers a distance of 76 km in 13 hours.
(10) By running at a speed of 21 km/h how much distance a car will cover in 5 second?