Wednesday
April 16, 2014

Homework Help: physics

Posted by terry on Friday, November 16, 2012 at 9:12pm.

To drive a typical car at 40 mph on a level road for one hour requires about 3.2 10^7 J of energy. Suppose one tried to store this much energy in a spinning solid cylindrical flywheel which was then coupled to the wheels of the car. A large flywheel cannot be spun too fast or it will fracture. If one used a flywheel of radius 0.60 m and mass 400 kg, what angular speed would be required to store 3.2x10^7(Incidentally, 2500 rpm is about the maximum feasible rate of revolution with present materials technology for such a flywheel

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - a car travels 40 miles at an average speed of 80 mph and then travels...
Physic Help - In heavy rush-hour traffic in Atlanta, you drive in a straight ...
STAT - Suppose adults in a particular town drive a mean of 65 mph with a ...
physics - A car starts at a position of x=6 ft and has a speed of 7 mph. After ...
math - There was a car accident. The first car was going 50 mph before the ...
Physics - Car A passes Car B on the highway. Rlative to car A's movement, Car B ...
math - Suppose that a certain municipality uses the equation y=3(x-50)+30 to ...
College algebra - Allison drove home at 58 mph, but her brother Austin, who left...
Science - Physics - How long would it take you to drive from Houston to ...
Physics II - It is ~ 100 miles of mostly interstate driving to camp. Using your ...

Search
Members