GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Earth’s revolution around the sun
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An ice skater skating in a circular path with constant speed
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A satellite moving in outer space orbiting the Earth
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A car rounding a curve with constant radius and speed
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Detailed explanation-1: -An accelerating car keeps on increasing its speed throughout the motion, hence, its speed is not constant and the motion is a Non-Uniform Circular motion.
Detailed explanation-2: -If we take an object moving in circular or elliptical orbits, even if the magnitude of the velocity is the same at all instants the direction changes at each instant. Hence we cannot say that the earth is in uniform motion around the sun. Therefore, the given statement is false.
Detailed explanation-3: -3) The rotation of the earth in non – accelerated motion and hence it is a uniform motion.
Detailed explanation-4: -Running of athletes in a marathon. the motion of a car in a city traffic. speaking. curling stone. mechanical bull ride. An aircraft while landing. Walking in a crowded street. Taking a dog for a walk. More items •01-Mar-2021