Posted by **phys101** on Friday, October 21, 2011 at 7:57pm.

A flywheel in the form of a heavy circular

disk of diameter 0.83 m and mass 111 kg is

mounted on a frictionless bearing. A motor

connected to the flywheel accelerates it from

rest to 1430 rev/min.

a)What is the moment of inertia of the fly-

wheel?

Answer in units of kg · m2

b) After 1430 rev/min is achieved, the motor is

disengaged. A friction brake is used to slow

the rotational rate to 834 rev/min.

What is the magnitude of the energy dissi-

pated as heat from the friction brake?

Answer in units of J

## Answer This Question

## Related Questions

- PHYSICS - A flywheel in the form of a heavy circular disk of diameter 0.83 m and...
- physics - A car is designed to get its energy from a rotating flywheel (solid ...
- physics - A car is designed to get its energy from a rotating flywheel (solid ...
- physics - hi,need help please.thank. A car is designed to get its energy from a ...
- Physics* - A car is designed to get its energy from a rotating flywheel (solid ...
- kinematics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick...
- kinetics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick ...
- kinetics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick ...
- kinetics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick ...
- kinetics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick ...

More Related Questions