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105. A solid sphere of mass 1 kg rolls on a table with linear speed 1 m/s. Its total kinetic energy is

(a) 1 J

(b) 0.5 J

(c) 0.7 J

(d) 1.4 J

Ans. c

(6)

5/5 - (1 vote)

PrevPrevious103. The ratio of kinetic energies of two spheres rolling with equal centre of mass velocities is 2 : 1. If their radii are in the ratio 2 : 1; then the ratio of their masses will be

Next106. A circular disc has a mass of 1 kg and radius 40 cm. It is rotating about an axis passing through its centre and perpendicular to its plane with a speed of 10 rev/s. The work done in joules in stopping it would beNext

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