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प्रश्न
When is instantaneous speed the same as the average speed?
उत्तर
Instantaneous velocity is equal to average velocity if the body is in uniform motion.
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संबंधित प्रश्न
What do you understand by the average speed of a body?
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.
Can the speed of a body be negative?
A car travels 30 km at a uniform speed of 60 km/h and the next 30 km at a uniform speed of 20 km/h. What is its average speed?
On a 120 km track, a train travels the first 40 km at a uniform speed of 30 km/h. How fast must the train travel the next 80 km, so as to average 60 km/h for the entire trip.
The SI unit of speed is a kilometer.
______ is the distance traveled by a body per unit of time.
Speed is always positive or zero but never be ______.
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.
Abus from Chennai travels to Trichy passes loo km, 160 km at 10.15 am, 11.15 am respectively. Find the average speed of the bus during 10.15 – 11.15 am.
