2 The girl in the diagram is swinging a conker on a string at a steady speed in a circular path honzontally above her head. What forces contribute to the ce centripetal force in order to keep the conker in its circular path? b What happens to the centripetal force if the girl uses a conker with a smaller mass? c Although it is moving at a steady speed the conker is continuously accelerating why

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2 The girl in the diagram is swinging a conker on a string at a steady speed in a circular path honzontally above her head. What forces contribute to the ce centripetal force in order to keep the conker in its circular path? b What happens to the centripetal force if the girl uses a conker with a smaller mass? c Although it is moving at a steady speed the conker is continuously accelerating why

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【Explanation】: Considering the example given, we will answer the following questions: a. What forces contribute to the centripetal force in order to keep the conker in its circular path? In uniform circular motion, the centripetal force (the force enabling the conker to maintain its circular path) primarily consists of the tensions exerted by the string on the conker. b. What happens to the centripetal force if the girl uses a conker with a smaller mass? The centripetal force directly relates to the mass of the object moving in the circular path, which is in this case, the conker. Therefore, if the girl uses a conker with a smaller mass, the centripetal force required to maintain the conker in its circular motion will equally decrease. This happens because the same force is able to pull a less-massive conker into a curved path more efficiently when keeping the speed constant. c. Although it is moving at a steady speed, the conker is continuously accelerating. Explain why. The continuous acceleration of the conker at a constant speed can be explained by the concept of vector quantities in physics. Velocity, a vector quantity, has both magnitude (speed) and direction. Even if the speed of the conker remains constant while in circular motion, the direction continuously changes (always tangent to the circle at any point). It's worth noting that the change in either the speed or direction, or both, results in acceleration. Therefore, the constant change in direction as the conker follows the circular path induces a non-zero acceleration, known as centripetal acceleration. 【Answers】: a. The tension exerts by the string on the conker primarily contributes to the centripetal force necessary to maintain the conker's circular motion. b. If a lesser massive conker is used, the demand of the centripetal force on each round reduces. c. Because the direction of the movement (thusly velocity) is persistently changing, even if the conker is moving at a steady speed, there is always a non-zero acceleration present (centripetal acceleration). Hence, it is continuously accelerating in a circular path.

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