You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Scalars and the Need for Vectors

A flywheel ha...

Question

A flywheel has moment of inertia 2 kgm². What constant torque is required to increase its speed from 4 rps to 12 rps in 8 sec?

125.6 Nm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

12.56 Nm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

1.256 Nm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1256 Nm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
12.56 Nm

Suggest Corrections

Similar questions

Q. A wheel whose moment of inertia is

2 k g m^{2}

has an initial angular velocity of

50 rad s^{- 1}

A constant torque of 10 N m acts on the wheel. The time in which the wheel is accelerated to

80 rad s^{- 1}

A ceiling fan is rotating at the rate of $3.5 r p s$ and its moment of inertia is $1.25 k g m^{2}$ . If the current is switched off, the fan comes to rest in $5.5 s$ . The torque acting on the fan due to friction is:

20 Nm

torque is applied to a flywheel that rotates about a fixed axis and has moment of inertia of

25 {kgm}^{2}

. If the flywheel is initially at rest, what is its angular velocity after it has turned through

10

revolutions?

Q. An energy of

484 J

is spent in increasing the speed of a flywheel from

60 r p m

360 r p m

. The moment of inertia of the flywheel is:

20 Nm

torque is applied to a flywheel that rotates about a fixed axis and has moment of inertia of

25 {kgm}^{2}

. If the flywheel is initially at rest, what is its angular velocity after it has turned through

10

revolutions?

Join BYJU'S Learning Program

A flywheel has moment of inertia 2 kgm2. What constant torque is required to increase its speed from 4 rps to 12 rps in 8 sec?

The correct option is B 12.56 Nm

A flywheel has moment of inertia 2 kgm². What constant torque is required to increase its speed from 4 rps to 12 rps in 8 sec?

The correct option is B
12.56 Nm