objects moving along a circular path have a centripetal acceleration provided by
ID: 1780126 • Letter: O
Question
objects moving along a circular path have a centripetal acceleration provided by a net force directed towards the center what will be the ratio of her weight in orbit to her weight on the planet's surface? 3. If a car's wheels are replaced with wheels of greater diameter, will the reading of the speedometer change? Explain. 4. Objects moving along a circular path have a centripetal accel- eration provided by a net force directed towards the center. Identify the force(s) providing the centripetal acceleration in each of these cases: (a) a planet in circular orbit around its sun; (b) a car going around an unbanked, circular turn; (c) a rock tied to a string and swung in a vertical circle, as it passes through its highest point; and (d) a dry sock in a clothes dryer as it spins in a horizontal circle. 5. A pendulum consists of a small object called a bob hanging from a light cord of fixed length, with the top end of the cord fixed, as represented in Figure CQ7.5. The bob moves without friction, swing- equally high on both sides. It ng moves from its turning point A through point B and reaches its maximum speed at point C. (a) At Figure Ca7.5Explanation / Answer
4) Concept: In each case think of possible force which acts towards center.
A) planets are far apart from sun. Only force we can think about is gravitational force. Gravitational force acts as centripetal force in this case.
B) Traveling in circular motion on an unbanked road, only force which can act towards center is FORCE OF FRICTION.
C)When rock will be at highest point in vertical circle two forces will be acting on it. TENSION AND GRAVITY.
D) The inner lining (wall ) of dryer will apply NORMAL force towards center of the dryer.
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