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We obtain the radius of the curved path through which the ball travels as 16 cm. Option AWhat is the radius of the path?We know that we can be able to obtain the radius of the path from the period of the path and the velocity of the object by the use of the equation;V = 2πr/TGiven that;V = velocityT = periodr = radiusVT = 2πrr = VT/2πr = 4.2 m/s * 0.24 s/ 2 * 3.142r = 1.008/6.284r = 0.16 m or 16 cmLearn more about radius of the path:https://brainly.com/question/15685257#SPJ1