A solid sphere, disc and solid cylinder all of the same mass and made up of same material are allowed to roll down (from rest) on inclined plane, then
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(a) solid sphere […]
A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis.A massless string is wound round the cylinder with one end attached to it and other hanging freely.Tension […]
A cord is wound round the circumference of wheel of radius r.The axis of the wheel is horizontal and moment of inertia about it is I.A weight mg is attached to the end of the […]
Two discs of moment of inertia l₁ and I₂ and angular speeds ?￢ﾂﾁ and ?￢ﾂﾂ are rotating along collinear axes passing through their centre of mass and perpendicular to their plane.If the two are made […]
A body of mass m slides down an incline and reaches the bottom with a velocity v, if the same mass were in the form of a ring which rolls down this incline, the velocity […]
A block slides from an inclination of 45°.If it takes time twice with friction than to that without friction, then coefficient of friction for surface is given by
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(a) 1 (b) 0.75 […]
A long horizontal rod has a bead which can slide long its length and initially placed at a distance L from one end A of the rod.The rod is set in angular motion about A […]
Two racing cars of masses m₁ and m₂ are moving in circles of radii r₁ and r₂ respectively.Their speeds are such that each makes a complete circle in the same time t.The ratio of the […]
Two bodies of mass 10 kg and 5 kg moving in concentric orbits of radius R and r such that their periods are the same.Then, the ratio between their centripetal acceleration is
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A wheel is rotating at 900 rpm about its axis.When the power is cut-off it comes to rest in 1 min.The angular retardation in rad s⁻² is
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(a) 𝜋 / 2 (b) 𝜋 / 4 […]
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