A solid sphere is rotating in free space.If the radius of the sphere is increased keeping mass same which one of the following will not be affected?
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(a) moment of inertia (b) […]
The ratio of the acceleration for a solid sphere(mass m and radius R)rolling down an incline of angle θ without slipping and slipping down the incline without rolling is
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(a) 5 : […]
A thin and circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity ?.If another […]
A small object of uniform density rolls up a curved surface with an initial velocity v’.It reaches upto a maximum height of 3v² / 4g with respect to the initial position.The object is
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Initial angular velocity of a circular disc of mass M is 𝜔₁.Then, two small spheres of m are attached gently to two diametrically opposite points on the edge of the disc.What is the final angular […]
When the disc rotates with uniform angulr velocity.Which of the following is not true?
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(a) The sense of rotation remains same (b) the orientattion of theaxis of rotation remainssame (c) the speed […]
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 body starts from rest, what is the ratio of the distance travelled by the body during the 4th second and 3rd second?
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(a) 7 / 5 (b) 5 / 7 (c) […]
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 […]
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