Q 4 The net force would be zero.QUESTION 4A mass m sits at a distance r from the center of a rough platter rotating with angular speed o. Which of the following would result in increasing the maximum rotational velocity (vímax)-w(max) times radius) at which theplatter can rotate without the mass slipping?O Increasing the mass itselfO Decreasing the massO Increasing the coefficient of static frictionO Decreasing the coefficient of static frictionTwo of the aboveO NOTAQUESTION 5In the previous problem, suppose the radial distance from the center of the platter to the location of the mass is increased Which statement below is true?The value of vimax) would be increasedThe value of vimax) would be decreasedThe static frictional force on the mass would increase (assuming w is unchanged).The static frictional force on the mass would decrease (assuming w is unchanged).Two of the above are trueNOTAQUESTION 6A car (purple circle) is moving on a banked track; the graphical addition of forces acting on the car is shown in the accompanying figure. From the figure, which is true of the force of friction?Click Save and Submit to save and submit. Click Save All Answers to save all answers.M

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A mass m sits at a distance r from the center of a rough platter rotating with angular speed w. Which of the following would result in increasing the maximum rotational velocity (vimax)-olmax) times radius) at which the platter can rotate without the mass slipping? O Increasing the mass itself O Decreasing the mass Increasing the coefficient of static friction O Decreasing the coefficient of static friction O Two of the above O NOTA