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प्रश्न
What do you understand by the average speed of a body?
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उत्तर
Average speed of a body can be defined as ratio of total distance covered by a body In total time.
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संबंधित प्रश्न
Suppose the two photographs, shown in Figure 1 and Figure 2, had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the fastest car.
Figure 1 Vehicles moving in the same direction on a road
Figure 2 Position of vehicles shown in Figure 1 after some time
A quantity is measured to be -30 m/s. Is it speed or velocity?
Can a body have negative speed?
A body covers half the distance with the speed A and the other half with speed B. What will be the average speed for the whole journey?
Asher says all objects having uniform speed need not have uniform velocity. Give reason.
Distances between two cities are measured in kilometres.
A ______ is the fastest land animal.
______ is the distance traveled by a body per unit of time.
A spaceship travels 36,000 km in one hour. Express its speed in km/s.
Assertion: The speed of a body can be Negative.
Reason: If the body is moving in the opposite direction of positive motion, then its speed is Negative.
