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4 A wheel of radius R and mass M is placed at the bottom of...

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4 A wheel of radius R and mass M is placed at the bottom of a fixed step of heig shown in the figure A constant force is continuously applied on the surface of the wheel so that it just climbs the step without slipping Consider the torque T about an axis normal to the plane of the paper passing through the point Q Which of the following options is are correct S P X R Q A If the force is applied at point P tangentially then 7 decreases continuously as the wheel climbs Spoo B If the force is applied normal to the circumference at point X then T is constant C If the force is applied normal to the circumference at point P then 7 is zero D If the force is applied tangentially at point S then T 0 but the wheel never climbs the step

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