A car moves along a circular track of radius 50 m with a speed of 10 m/s. What is its centripetal acceleration?
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A.
4 m/s²
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B.
2 m/s²
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C.
5 m/s²
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D.
10 m/s²
Correct Answer:
B. 2 m/s²
Explanation:
The acceleration toward the center of a circular track, known as centripetal acceleration, is found by squaring the object's velocity and then dividing by the radius (a = v²/r). With the car moving at 10 m/s and the track having a radius of 50 meters, the calculation is (10 * 10) / 50, which yields 2 m/s². This result confirms that choice B is the correct solution.
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