Question:
( 1 of 10 ) By running at a speed of 48 km/h how much distance an athlete will cover in 10 second?
(A) 65 years and 36 years
(B) 67 years and 19 years
(C) 86 years and 48 years
(D) 43 years and 24 years
You selected
66.65 meter
Correct Answer
133.3 meter
Solution And Explanation
Solution
Given,
Speed = 48 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, 48 km/h = 48 × 5/18 m/s
= 48 × 5/18 m/s
= 240/18 = 13.33 m/s
Thus, speed = 13.33 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 13.33 m/s × 10 s = 133.3 m
Thus, distance = 133.3 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 13.33 meter
∴ In 10 second, the distance covered = 13.33 m × 10 = meter
Thus, distance = 133.3 meter Answer
Similar Questions
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(2) Find the distance covered by a scooty in 22 hours if it covers a distance of 80 km in 12 hours.
(3) By running at a speed of 3 km/h how much distance a cyclist will cover in 6 second?
(4) If a truck covers a distance of 100 km in 16 hours then how much distance will it cover in 26 hours?
(5) At a certain speed a scooty covers a distance of 24 km in 4 hours. How much distance will it cover in 5 hour?
(6) Find the distance covered by a scooty in 22 hours if it covers a distance of 56 km in 12 hours.
(7) By running at a speed of 28 km/h how much distance an athlete will cover in 10 second?
(8) At a certain speed a cyclist covers a distance of 84 km in 3 hours. How much distance will it cover in 4 hour?
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