Posted by Sandhya on Tuesday, December 2, 2008 at 5:08am.
A bicycle with wheels of 70.0 cm diameter is going at a speed of 12.0 m/s.How fast is a point on the rim at the top of one of the wheels moving relative to the ground?

physics  drwls, Tuesday, December 2, 2008 at 5:17am
The angular velocity of the wheel is
w = V/R = 12.0/0.700 = 17.14 rad/s
Because the contact point of the wheel with the road is an "instant center" of rotation, a point at the top of the wheel moves at a velocity 2 w = 2 R * (V/R) = 2 V = 24 m/s.

physics  Sandhya, Tuesday, December 2, 2008 at 5:35am
Thanks for your quick response
Answer This Question
Related Questions
 physics  A bicycle has wheels 67.3 cm in diameter and pedal cranks 17.5 cm long...
 physics  A bicycle has 67.0 cm diameter wheels turning at 11.2 rev/s. How fast ...
 Trigonometry  a bicycle with 24inch diameter wheels is traveling at 15mi/hr. a...
 physics  Leonâ€™s bicycle wheels have a circumference of 2 m. What is his linear ...
 Honors PreCalculus  It is known that when a car with wheels of radius 14 in. ...
 physics  A bicycle with 55.20 cm diameter wheels is traveling at 23.60 km/hr. ...
 physics  A bicycle has wheels with a diameter of 0.630 m. It accelerates ...
 Math  The distance a bicycle travels with each turn of its wheels is about 3 1/...
 Physics  A bicycle has wheels of radius 0.32 m. Each wheel has a roatational ...
 Trignometry  A car is moving at a rate of 55 mph and the diameter of its wheels...
More Related Questions