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Victor Lins Victor Lins 9 9 bronze badges. MC2k MC2k 3 3 silver badges 15 15 bronze badges. Sign up or log in Sign up using Google. Causes an object to change its direction and not its speed along a circular pathway. Also called radial acceleration. Centripetal radial acceleration is the acceleration that causes an object to move along a circular path, or turn.
Centripetal forces cause centripetal accelerations. Centripetal Acceleration Formula. The acceleration is equal to the square of the velocity, divided by the radius of the circular path. Which is a characteristic of centripetal acceleration?
It is directed inward, toward the center of a circle. Centripetal force is the force on an object on a circular path that keeps the object moving on the path. It is always directed towards the center and its magnitude is constant, based on the mass of the object, its tangential velocity, and the distance of the object radius from the center of the circular path.
As the centripetal force acts upon an object moving in a circle at constant speed, the force always acts inward as the velocity of the object is directed tangent to the circle. The force can indeed accelerate the object — by changing its direction — but it cannot change its speed. In motion the acceleration is the rate of change of velocity , so it has nothing to do with the mass, mass affects the force that acts on the object according to Newton second law of motion. Without a centripetal force, an object in motion continues along a straight-line path.
With a centripetal force, an object in motion will be accelerated and change its direction. When the car makes a sudden turn, the passengers tend to continue in their straight line path. A major difference between centrifugal and centripetal force is the direction of each. Centrifugal takes place along the radius of the circle from the center out towards the object.
For centripetal, it is the opposite, taking place also along the radius of the circle, but from the object in towards the center.
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