A hollow sphere and a solid sphere having same mass and same radii are rolled down a rough inclined plane.
(a) The hollow sphere reaches the bottom first.
(b) The solid sphere reaches the bottom with greater speed.
(c) The solid sphere reaches the bottom with greater kinetic energy.
(d) The two spheres will reach the bottom with same linear momentum.
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A solid cylinder rolls up an inclined plane of angle of inclination 30°. At the bottom of the inclined plane the centre of mass of the cylinder
Inclination angle (∅)= 30° Speed of centre of mass (v)= 5m/s (A) acceleration of the cylinder rolling up the inclined plane is Given by the formula, a = -gsin∅/(1 + k²/r²) Where K = radius...
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A solid sphere, a hollow sphere and a ring are released from top of an inclined plane (frictionless) so that they slide down the plane.
(d) : The bodies slide along inclined plane. They do not roll. Acceleration for each body down the plane = gsinθ. It is the same for each body
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A solid sphere, a hollow sphere and a disc, all having same mass and radius,
(d) all will take same Explanation: Since there is no friction on the incline, the only force on each of these objects along the incline is their weight component mg.sinθ. So each of them have same initial...
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A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of an incline and released.
(d) all will take same time. Explanation: Since pure rolling does not occur, the objects slide. Therefore on each of them, a frictional force acts against the motion. Now, the normal force on each...
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A hollow sphere and a solid sphere having same mass and same radii are rolled down a rough inclined plane.
What about the work done by friction?.. Since the friction is lesser in the solid spheres case and they both cover same distances.... Shouldn't the solid sphere reach with greater...
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A sphere is rolled on a rough horizontal surface. It gradually slows down and stops.
(a) decrease the linear velocity (b) increase the angular velocity Explanation: When a sphere is pushed on a rough horizontal surface to roll, it is given some linear speed and it ties to slip on...
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A solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature.
The correct answer is (a) Both will emit equal amount of radiation per unit time in the biginning. (b) Both will absorb equal amount of radiation from the surrounding in the biginning.
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A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of a same incline and released.
(d) all will take same Explanation: Since there is no friction on the incline, the only force on each of these objects along the incline is their weight component mg.sinθ. So each of...
1 Answers 1 views
A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of an and released,
(d) all will take same time. Explanation: Since pure rolling does not occur, the objects slide. Therefore on each of them, a frictional force acts against the motion. Now, the normal force on each of the...
1 Answers 1 views
A hollow sphere and a solid sphere having same mass and same radii are rolled down a rough inclined plane,
(b) The solid sphere reaches the bottom with greater speed. Explanation: For a hollow sphere, the linear acceleration a = (3/5)g.sinθ = 0.60g.sinθ For solid sphere a = (5/7)g.sinθ = 0.71g.sinθ Since 'a' for solid sphere is...
1 Answers 1 views