Question:
By running at a speed of 32 km/h how much distance a motor bike will cover in 8 second?
Correct Answer
71.12 meter
Solution And Explanation
Solution
Given,
Speed = 32 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, 32 km/h = 32 × 5/18 m/s
= 32 × 5/18 m/s
= 160/18 = 8.89 m/s
Thus, speed = 8.89 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 8.89 m/s × 8 s = 71.12 m
Thus, distance = 71.12 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 8.89 meter
∴ In 8 second, the distance covered = 8.89 m × 8 = meter
Thus, distance = 71.12 meter Answer
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(2) By running at a speed of 34 km/h how much distance a scooty will cover in 7 second?
(3) By running at a speed of 26 km/h how much distance a cyclist will cover in 6 second?
(4) At a certain speed a cyclist covers a distance of 98 km in 3 hours. How much distance will it cover in 4 hour?
(5) By running at a speed of 16 km/h how much distance a car will cover in 5 second?
(6) By running at a speed of 45 km/h how much distance a cyclist will cover in 6 second?
(7) By running at a speed of 34 km/h how much distance a car will cover in 5 second?
(8) By running at a speed of 12 km/h how much distance a motor bike will cover in 8 second?
(9) Find the distance covered by a ball in 26 hours if it covers a distance of 94 km in 16 hours.
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