ROTATIONAL INERTIA OF SOLID BODIES, ROTATIONAL DYNAMICS
Rotational Motion

269472 The shaft of a motor is making1260rpm. The torque supplied by the motor is 100Nm. the power of motor is ( in KW)

1 100
2 21
3 13.2
4 4.8
Rotational Motion

269473 An electric motor rotates a wheel at a constant angular velocity10rps while opposing torque is 10Nm. The power of that electric motor is

1 120 W
2 628 W
3 314 W
4 3.14 W
Rotational Motion

269474 The work done in increasing the angular frequency of a circular ring of mass2 kg and radius 25 cm from 10rpm to 20rpm about is axis

1 0.2058J
2 0.2040 J
3 0.2085 J
4 0.2004 J
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Rotational Motion

269471 A wheel at rest has M.I.2π2kgm2. It is rotated by a 60 W motor for one minute. The number of rotations made by the wheel in one minute is

1 90
2 450
3 1800
4 1200
Rotational Motion

269472 The shaft of a motor is making1260rpm. The torque supplied by the motor is 100Nm. the power of motor is ( in KW)

1 100
2 21
3 13.2
4 4.8
Rotational Motion

269473 An electric motor rotates a wheel at a constant angular velocity10rps while opposing torque is 10Nm. The power of that electric motor is

1 120 W
2 628 W
3 314 W
4 3.14 W
Rotational Motion

269474 The work done in increasing the angular frequency of a circular ring of mass2 kg and radius 25 cm from 10rpm to 20rpm about is axis

1 0.2058J
2 0.2040 J
3 0.2085 J
4 0.2004 J
Rotational Motion

269471 A wheel at rest has M.I.2π2kgm2. It is rotated by a 60 W motor for one minute. The number of rotations made by the wheel in one minute is

1 90
2 450
3 1800
4 1200
Rotational Motion

269472 The shaft of a motor is making1260rpm. The torque supplied by the motor is 100Nm. the power of motor is ( in KW)

1 100
2 21
3 13.2
4 4.8
Rotational Motion

269473 An electric motor rotates a wheel at a constant angular velocity10rps while opposing torque is 10Nm. The power of that electric motor is

1 120 W
2 628 W
3 314 W
4 3.14 W
Rotational Motion

269474 The work done in increasing the angular frequency of a circular ring of mass2 kg and radius 25 cm from 10rpm to 20rpm about is axis

1 0.2058J
2 0.2040 J
3 0.2085 J
4 0.2004 J
Rotational Motion

269471 A wheel at rest has M.I.2π2kgm2. It is rotated by a 60 W motor for one minute. The number of rotations made by the wheel in one minute is

1 90
2 450
3 1800
4 1200
Rotational Motion

269472 The shaft of a motor is making1260rpm. The torque supplied by the motor is 100Nm. the power of motor is ( in KW)

1 100
2 21
3 13.2
4 4.8
Rotational Motion

269473 An electric motor rotates a wheel at a constant angular velocity10rps while opposing torque is 10Nm. The power of that electric motor is

1 120 W
2 628 W
3 314 W
4 3.14 W
Rotational Motion

269474 The work done in increasing the angular frequency of a circular ring of mass2 kg and radius 25 cm from 10rpm to 20rpm about is axis

1 0.2058J
2 0.2040 J
3 0.2085 J
4 0.2004 J
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here