Answer to Question #287592 in Physics for Nard

Question #287592

A 5-kg object moves around a circular track of a radius of 18 cm with a constant




speed of 6 m/s. Find




(a) The magnitude and direction of the acceleration of the object.




(b) The net force acting upon the object causing this acceleration.

1
Expert's answer
2022-01-14T09:45:16-0500

(a) The acceleration is centripetal, its magnitude is


"a_c=\\dfrac {v^2}{R}=200\\text{ m\/s}^2."


The centripetal acceleration is always directed toward the axis of rotation.

(b) The net force (the centripetal force) is


"F_c=ma_c=1000\\text{ N}."


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