Rotational Kinetic Energy, Work and Power

JEE Main Physics · Rotational Motion · 6 questions, latest first

• A fly wheel having mass 3 kg and radius 5 m is free to rotate about a horizontal axis. A string having negligible mass is wound…202628 January, Shift 2 · Q46
• A thin uniform rod(X) of mass M and length L is pivoted at a height (L/3) as shown in the figure. The rod is allowed to fall from…202624 January, Shift 2 · Q27
• Two masses m and 2 m are connected by a light string going over a pulley (disc) of mass 30 m with radius r=0.1 m. The pulley is…202622 January, Shift 2 · Q46
• A cord of negligible mass is wound around the rim of a wheel supported by spokes with negligible mass. The mass of wheel is 10 kg…20252 April, Shift 1 · Q28
• A circular disk of radius R meter and mass M kg is rotating around the axis perpendicular to the disk. An external torque is…202523 January, Shift 2 · Q29
• A thin uniform rod of length 2 m, cross sectional area ' A ' and density ' d ' is rotated about an axis passing through the…202330 January, Shift 1 · Q22