Friday

April 18, 2014

April 18, 2014

Posted by **Joey** on Wednesday, January 5, 2011 at 9:35am.

(a) What is the angular speed of the tires about their axles?

1 rad/s

(b) If the car is brought to a stop uniformly in 25.0 complete turns of the tires (without skidding), what is the magnitude of the angular acceleration of the wheels?

2 rad/s2

(c) How far does the car move during the braking?

3 m

- physics -
**Damon**, Wednesday, January 5, 2011 at 9:53amI already took this course. It is your turn to try the problems. When we see exactly what you are having trouble with perhaps we can help.

Remember

Torque = rate of change of angular momentum

= I alpha

omega = w = angular speed

angular momentum = I w

alpha = dw/dt = rate of change of w = angular acceleration

tangential speed = v = w r

distance rolled = r theta = 2 pi r*number of turns

**Related Questions**

Physics - A car with 60 cm diameter tires is traveling at a constant speed of ...

Physics - A car with 60 cm diameter tires is traveling at a constant speed of ...

Physics - A car is traveling with a speed of 34 m/s. If the tires have an ...

Physics. - A monster truck has tires with a diameter of 1.10 m and is traveling ...

Physics - 1) A circular disk 0.20m in diameter starts from rest and accelerates ...

physics help! - The tires of a car make 63 revolutions as the car reduces its ...

physics - A car traveling 50 m/s has tires tires that with radii of 0.25 m. The ...

physics - The tires of a car make 58 revolutions as the car reduces its speed ...

Trigonometry - The tires on a car have radius 14 inches. Find the angular speed ...

Physics?? - A car is traveling at a speed of 62 on a freeway. If its tires have ...