GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All of the following are examples of acceleration, except-
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A car slowing down
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A car making a turn
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A car moving at a constant speed
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A car speeding up
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Explanation:
Detailed explanation-1: -Acceleration is defined as rate of change of speed So, if car is moving with constant speed that means rate of change of speed is zero. Hence, acceleration is zero.
Detailed explanation-2: -A car with it’s cruise control set, traveling in a constant direction at a constant speed, is not accelerating.
Detailed explanation-3: -Can an object accelerate if it’s moving with constant speed? Yup! Many people find this counter-intuitive at first because they forget that changes in the direction of motion of an object-even if the object is maintaining a constant speed-still count as acceleration.
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