A thin uniform rod
A thin uniform rod, pivoted at O, is rotating in the horizontal plane with constant angular speed ω, as shown in the figure. At time t = 0, a small insect starts from O and moves with constant speed v with respect to the rod towards the other end. It reaches the end of the rod at t = T and stops. The angular speed of the system remains ω throughout. The magnitude of the torque ∣ τ ∣ on the system about O, as a function of time is best represented by which plot?
28
Sep
A thin uniform rod, pivoted at O, is rotating in the horizontal plane with constant angular speed ω, as shown in the figure. At time t = 0, a small insect starts from O and moves with constant speed v with respect to the rod towards the other end. It reaches the end of the [...]
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a small disc of mass M and radius 3 R is removed concentrically. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through its centre is ,
A thin uniform rod ,
as shown in the figure. At time t = 0 ,
From a circular disc of radius R and mass 9 M ,
is rotating in the horizontal plane with constant angular speed ω ,
pivoted at O ,