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प्रश्न
Distances between two cities are measured in kilometres.
विकल्प
True
False
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उत्तर
This statement is True.
Explanation:
Distances between two cities are typically measured in kilometres to provide a standardized and practical unit of measurement.
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संबंधित प्रश्न
Which is greater?
(i) 60 km/hr
(ii) 15 m/s
A quantity is measured to be -30 m/s. Is it speed or velocity?
Can the speed of a body be negative?
The average time taken by a normal person to react to an emergency is one fifteenth of a second and is called the 'reaction time'. If a bus is moving with a velocity of 60 km/h and its driver sees a child running across the road, how much distance would the bus had moved before he could press the brakes? The reaction time of the people increases when they are intoxicated. How much distance had the bus moved if the reaction time of the driver were 1/2 s under the influence of alcohol?
A girl had designed a clap switch for a science exhibition that enabled her to switch on or off an alarm just with clapping of hands. While testing her device in a hall, she noticed that once the alarm has sounded it followed with another one due to echo of the clap, that is, the sound reflected by the walls. She recorded the two soundings of alarm with her tape recorder and found out that time difference in between them is 0.1 s. If the distance of the walls be 15 m, calculate the speed of sound.
For a body moving along a circular path, show that:
Linear speed = Angular velocity X radius of the circle
The correct relation among the following is
A vehicle covers a distance of 400km in 5 hours. Calculate its speed.
The speed of a train is expressed in m/h.
If Boojho covers a certain distance in one hour and Paheli covers the same distance in two hours, who travels at a higher speed?
