Verified Solution • 2025–26 Session
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QJEEAdv17Ph05b2: JEE Advanced 2017 Physics - Class 11 JEEAdv17Ph05b2 Solution: A wheel of radius R and mass M is placed at the bottom of a…
A wheel of radius R and mass M is placed at the bottom of a fixed step of height R as 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
Multiple Choice Options
- A If the force is applied normal to the circumference at point P, then τ is zero
- B If the force is applied tangentially at point S, then τ ≠ 0 but the wheel never climbs the step
- C If the force is applied at point P tangentially, then τ decreases continuously as the wheel climbs
- D If the force is applied normal to the circumference at point X, then τ is constant
Step-by-Step Verified Solution
(a) If force is applied normal to surface at P, then line of action of force will pass from Q and thus
(b) Wheel can climb.
(c)
Hence, as
(d)
