Saturday
April 19, 2014

Homework Help: physics

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

First Name:
School Subject:
Answer:

Related Questions

PHYSICS - A flywheel in the form of a heavy circular disk of diameter 0.83 m and...
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 ...
engineering mechanics - An exercise bicycle's flywheel is 30cm in diameter and 2...
engineering mechanics - An exercise bicycle's flywheel is 30cm in diameter and 2...
physics - A car is designed to get its energy from a rotating flywheel with a ...
physics - A car is designed to get its energy from a rotating flywheel (solid ...

Search
Members