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प्रश्न
Vehicles moving with varying speeds are said to be in uniform motion.
पर्याय
True
False
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उत्तर
Vehicles moving with varying speeds are said to be in uniform motion- False.
Correct statement
Vehicles moving with varying speeds are said to be in non-uniform motion.
OR
Vehicles moving with uniform speeds are said to be in uniform motion.
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संबंधित प्रश्न
Which is greater?
(i) 60 km/hr
(ii) 15 m/s
Which is greater?
(i) 36 km/hr
(ii) 8.5 m/s
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?
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?
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.
Define speed Mention its formula and unit.
Paheli and Boojho have to cover different distances to reach their school but they take the same time to reach the school. What can you say about their speed?
A spaceship travels 36,000 km in one hour. Express its speed in km/s.
Distinguish between Speed and velocity.
