GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Its direction changes
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It doesn’t
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It slows down
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Its speeds up
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Detailed explanation-1: -The car experiences a centripetal force as it turns the corner as a result of friction. This in turn causes a centripetal acceleration, which causes the direction of the velocity to change.
Detailed explanation-2: -An object undergoing uniform circular motion is moving with a constant speed. Nonetheless, it is accelerating due to its change in direction. The direction of the acceleration is inwards.
Detailed explanation-3: -The car is accelerating because it is change direction as it goes around the curve. The car has a constant velocity because nothing about the cars motion is changing.
Detailed explanation-4: -Explanation: If an object is moving with constant velocity, then its acceleration must be zero. We can then look at Newton’s second law. If the acceleration is zero, then the net force must also be zero.