GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Its rate of change of speed is decreasing.
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Its speed is constant.
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Its speed is decreasing.
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Its speed is increasing.
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Detailed explanation-1: -2 An object is moving with uniform deceleration. Which statement describes its motion? A Its rate of change of speed is decreasing.
Detailed explanation-2: -An object is said to be moving with a uniform deceleration, if its velocity is decreasing by equal amount in equal intervals of time.
Detailed explanation-3: -A body is said to be uniformly decelerating if its velocity keeps decreasing equally in equal intervals of time. A body thrown upwards is an example of a uniformly decelerating body. Its velocity keeps decreasing by 9.8 m/s every second due to gravity until it becomes zero.
Detailed explanation-4: -Therefore, circular motion is an example of an object moving with acceleration but with uniform speed.
Detailed explanation-5: -1) Deceleration happens when an object’s speed decreases. It is not moving speed. 4) All moving objects start from the origin.