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प्रश्न
Define Speed.
उत्तर
The distance covered by a body in a unit time is called its speed. It is also defined as the rate of change position of a body in any direction.
Speed = distance/time
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संबंधित प्रश्न
When is instantaneous speed the same as the average speed?
If a body traverses a distance in direct proportion to the time, the speed of the body is ______.
Arrange the following speeds in the increasing order:
(i) A bicycle moving with a speed of 36 km/h.
(ii) A car moving with a speed of 2 km/min.
(iii) An athlete running with a speed of 7 m/s.
A boy covers half of his journey with a uniform speed of u and the other half with a uniform speed of v. What is the average speed for the whole journey?
Can the speed of a body be negative?
The correct relation among the following is
A ______ is the fastest land animal.
What is the unit of average speed in SI system?
A bus travels, a distance of 20 km from Chennai central to the airport in 45 minutes. What is the average speed?
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.
