Compute the angular velocity when person reaches

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Reference no: EM1315331

Q1. A person of mass 76 kg stands at center of a rotating merry-go-round platform of radius 3.0 m and moment of inertia 930kg•m2. The platform rotates without friction with angular velocity 0.90 rad/s. The person walks radially to the edge of the platform.

(a) Compute the angular velocity when person reaches the edge. rad/s

(b) compute the rotational kinetic energy of the system of platform plus person before and after the person's walk.

Q2. A 2500 kg race car is travelling around a flat circular race trace of radius 230 m.

what is the minimum coefficient of static friction required between tires and race track if the car is to stay on the track at a speed of 130m/s?

Reference no: EM1315331

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