Question:
By running at a speed of 3 km/h how much distance a scooty will cover in 7 second?
Correct Answer
5.81 meter
Solution And Explanation
Solution
Given,
Speed = 3 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, 3 km/h = 3 × 5/18 m/s
= 3 × 5/18 m/s
= 15/18 = 0.83 m/s
Thus, speed = 0.83 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 0.83 m/s × 7 s = 5.81 m
Thus, distance = 5.81 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 0.83 meter
∴ In 7 second, the distance covered = 0.83 m × 7 = meter
Thus, distance = 5.81 meter Answer
Similar Questions
(1) Find the distance covered by an athlete in 25 hours if it covers a distance of 80 km in 15 hours.
(2) By running at a speed of 10 km/h how much distance a cyclist will cover in 6 second?
(3) By running at a speed of 21 km/h how much distance a cyclist will cover in 6 second?
(4) By running at a speed of 35 km/h how much distance a cyclist will cover in 6 second?
(5) Find the distance covered by a ball in 26 hours if it covers a distance of 54 km in 16 hours.
(6) By running at a speed of 7 km/h how much distance a bus will cover in 9 second?
(7) An athlete takes 30 second to complete a race of 450 meter. Find the speed of the athlete in kilometre per hour.
(8) Find the distance covered by a motor bike in 23 hours if it covers a distance of 72 km in 13 hours.
(9) By running at a speed of 17 km/h how much distance a bus will cover in 9 second?
(10) By running at a speed of 5 km/h how much distance a scooty will cover in 7 second?