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प्रश्न
Every object moves with a constant speed.
विकल्प
True
False
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उत्तर
This statement is False.
Explanation:
Objects do not always move with a constant speed; their speed can change due to acceleration or deceleration.
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संबंधित प्रश्न
If a body traverses a distance in direct proportion to the time, the speed of the body is ______.
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?
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?
Complete the analogy.
Distance : metre :: Speed: ______?
Length of scale : metre :: Speed of aeroplane : ______.
Speed is a ______ quantity whereas velocity is a ______ quantity.
Which of the quantities have the same SI unit?
In a 100m race, the winner takes 10s to reach the finishing point. The average speed of the winner is ______.
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.
Distinguish between Speed and velocity.
