Scoring bmission is used for your score. 5/20 points | Previous Answers Giancoli

Question

Scoring bmission is used for your score. 5/20 points | Previous Answers Giancoli7 5.P001. child sitting 1.04 m from the center of a merry-go-round moves with a speed of 1.10 m, (a) Calculate the centripetal acceleration of the child. 1.16 m/s toward the center (b) Calculate the net horizontal force exerted on the child (mass = 25.0 kg). 29.1 N away from the center X 10 points Giancoli7 5.P.005 0.40 kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.3 rface. If the cord will break when the tension in it exceeds 65 N, what is the maximum s

Explanation / Answer

(a) Centripetal acceleration, a = v2 / r = (1.10)2 / (1.04) = 1.163 m/s2 (towards the center)

(b) The net horizontal force exerted, F = ma = (25)(1.163) = 29.09 N ( towards the center)

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