Asked by christian
A centripetal force causes circular motion because it accelerates an object
toward the center of a circle, which changes the direction of motion but not the speed.
toward the center of a circle, which changes the speed of motion but not the direction.
along the edge of a circle, which changes the direction of motion but not the speed.
along the edge of a circle, which changes the speed of motion but not the direction.
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toward the center of a circle, which changes the direction of motion but not the speed.
Explanation: centripetal force (and resulting centripetal acceleration) is directed perpendicular to the instantaneous velocity, so it bends the path into a circle without doing work on the object — it changes the direction of velocity but not its magnitude (for uniform circular motion).
Explanation: centripetal force (and resulting centripetal acceleration) is directed perpendicular to the instantaneous velocity, so it bends the path into a circle without doing work on the object — it changes the direction of velocity but not its magnitude (for uniform circular motion).
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