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प्रश्न
Does uniform speed mean constant speed?
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उत्तर
Yes uniform speed and constant speed have same meaning.
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संबंधित प्रश्न
A body goes from P to Q with a uniform speed of u and immediately returns back to P at a uniform speed of v. What is the average speed for the whole journey?
Can a body have negative speed?
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 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?
A train travels the first 30km of its journey at 30km/h. Find the speed it should travel the next 90km to have an average speed of 60km/h.
Compare speed and velocity
Distances between two cities are measured in kilometres.
______ is the distance traveled by a body per unit of time.
Which of the quantities have the same SI unit?
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.
