Wednesday

April 16, 2014

April 16, 2014

Posted by **opp** on Thursday, March 22, 2012 at 3:26pm.

(a) What is its rotational inertia?

(b) When driving at 22.4 m/s (50 mph), the fully energized flywheel is rotating at an angular speed of 3160 rad/s. What is the initial rotational kinetic energy of the flywheel?

(c) If the total mass of the car is 1120.0 kg, find the ratio of the initial rotational kinetic energy of the flywheel to the translational kinetic energy of the car.

(d) If the force of air resistance on the car is 700.0 N, how far can the car travel at a speed of 22.4 m/s (50 mph) with the initial stored energy? Ignore losses of mechanical energy due to means other than air resistance.

- physics -
**bobpursley**, Thursday, March 22, 2012 at 4:25pma. Look this up, flat disk, moment of inertia table.

b. KE= 1/2 I w^2

**Related Questions**

physics - To drive a typical car at 40 mph on a level road for one hour requires...

physics - Flywheels are large massive wheels (disks) used to store energy. They ...

Physics - Flywheels are large, massive wheels used to store energy. They can be ...

Physics Rotaional Kinetic Energy - A car is designed to get its energy from a ...

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 ...

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 ...

Physics - A flywheel is a solid disk that rotates about an axis that is ...