Question:
By running at a speed of 14 km/h how much distance a scooty will cover in 7 second?
Correct Answer
27.23 meter
Solution And Explanation
Solution
Given,
Speed = 14 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, 14 km/h = 14 × 5/18 m/s
= 14 × 5/18 m/s
= 70/18 = 3.89 m/s
Thus, speed = 3.89 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 3.89 m/s × 7 s = 27.23 m
Thus, distance = 27.23 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 3.89 meter
∴ In 7 second, the distance covered = 3.89 m × 7 = meter
Thus, distance = 27.23 meter Answer
Similar Questions
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(2) By running at a speed of 47 km/h how much distance a car will cover in 5 second?
(3) Find the distance covered by a motor bike in 23 hours if it covers a distance of 90 km in 13 hours.
(4) Find the distance covered by a moving object in 28 hours if it covers a distance of 88 km in 18 hours.
(5) At a certain speed a car covers a distance of 84 km in 2 hours. How much distance will it cover in 3 hour?
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(8) By running at a speed of 23 km/h how much distance a car will cover in 5 second?
(9) At a certain speed a cyclist covers a distance of 70 km in 3 hours. How much distance will it cover in 4 hour?
(10) Find the distance covered by a ball in 26 hours if it covers a distance of 90 km in 16 hours.