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UrbanXrisis
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Earth goes around the sun. The centripetal force always acts towards the sun. What is the source of this force? Is it gravity?
UrbanXrisis said:Gravity isn't a force is it? Gravity isn't defined in Newtons.
The source of centripetal force is the net force acting towards the center of a circular motion. It can be caused by various factors such as gravity, tension, or friction.
Centripetal force is the inward force that keeps an object moving in a circular path, while centrifugal force is the outward force that seems to pull an object away from the center of rotation. In reality, centrifugal force is a fictitious force caused by inertia.
No, centripetal force cannot be zero. In order to maintain circular motion, there must always be a net force acting towards the center. If the centripetal force becomes zero, the object will stop moving in a circular path and will either fly off in a straight line or collapse towards the center.
Centripetal force is directly proportional to the square of the velocity. This means that as the velocity increases, the centripetal force required to maintain circular motion also increases. If the velocity is doubled, the centripetal force must be multiplied by four.
No, centripetal force cannot change the speed of an object. It only changes the direction of motion, keeping the object moving in a circular path. The speed of the object remains constant unless acted upon by an external force.