Cengage NEET by C.P Singh
A uniform horizontal circular platform of mass 200kg is rotating at 10 rpm about a vertical axis passing through its center. A boy of mass 50kg is standing at its edge. If the boy moves to the center of the platform, the frequency of rotation would become
23
Oct
A uniform horizontal circular platform of mass 200kg is rotating at 10 rpm about a vertical axis passing through its center. A boy of mass 50kg is standing at its edge. If the boy moves to the center of the platform, the frequency of rotation would become A solid sphere is rotating about a diameter [...]
If radius of the earth becomes to half of its present value with its mass remaining the same, the duration of one day will become
23
Oct
If radius of the earth becomes to half of its present value with its mass remaining the same, the duration of one day will become If radius of the earth becomes to half of its present value with its mass remaining the same the duration of one day will become October 23, 2020 Category: Cengage [...]
A man standing on a platform holds weight in his outstretched arms. The system rotates freely about a central vertical axis. If he now draws the weights inward close to his body
23
Oct
A man standing on a platform holds weight in his outstretched arms. The system rotates freely about a central vertical axis. If he now draws the weights inward close to his body A man standing on a platform holds weight in his outstretched arms. The system rotates freely about a central vertical axis. If he [...]
A solid sphere is rotating about a diameter at an angular velocity ω. If it cools so that its radius reduces to I/n of its original value, its angular velocity becomes
23
Oct
A solid sphere is rotating about a diameter at an angular velocity ω. If it cools so that its radius reduces to I/n of its original value, its angular velocity becomes A solid sphere is rotating about a diameter at an angular velocity ω. If it cools so that its radius reduces to I/n of [...]
A particle of mass m is rotating in a plane in circular path of radius r. Its angular momentum is L. The centripetal force acting on the particle is
23
Oct
A particle of mass m is rotating in a plane in circular path of radius r. Its angular momentum is L. The centripetal force acting on the particle is A particle of mass m is rotating in a plane in circular path of radius r. Its angular momentum is L. The centripetal force acting on [...]
If the angular momentum of any rotating body increases by 200%, then the increase in its kinetic energy
23
Oct
If the angular momentum of any rotating body increases by 200%, then the increase in its kinetic energy If the angular momentum of any rotating body increases by 200% then the increase in its kinetic energy October 23, 2020 Category: Cengage NEET by C.P Singh , Chapter 11 - Rotational Motion , Part 1 ,
Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momentum will be in the ratio.
23
Oct
Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momentum will be in the ratio. their angular momentum will be in the ratio. Two bodies have their moments of inertia I and 2I respectively about their axis of [...]
A particle of mass m is projected with a velocity v making an angle of 45^∘ with the horizontal. The magnitude of the angular momentum of the projectile abut the point of projection when the particle is at its maximum height h is.
23
Oct
A particle of mass m is projected with a velocity v making an angle of 45^∘ with the horizontal. The magnitude of the angular momentum of the projectile abut the point of projection when the particle is at its maximum height h is. If a ladder weighing 250 N is placed against a smooth vertical [...]
A particle of mass m=5kg is moving with a uniform speed v=32–√ in the X-Y plane along the line Y=X+4. The magnitude of the angular momentum about the origin in g cm^2/s is
23
Oct
A particle of mass m=5kg is moving with a uniform speed v=32–√ in the X-Y plane along the line Y=X+4. The magnitude of the angular momentum about the origin in g cm^2/s is A particle of mass m=5kg is moving with a uniform speed v=32–√ in the X-Y plane along the line Y=X+4. The magnitude [...]
A particle of mass m moves in the XY plane with a velocity v along the straight line AB. If the angular momentum of the particle with respect to origin O is LA when it is at A and LB when it is at B, then
23
Oct
A particle of mass m moves in the XY plane with a velocity v along the straight line AB. If the angular momentum of the particle with respect to origin O is LA when it is at A and LB when it is at B, then A particle of mass m moves in the XY [...]