Saturday
November 22, 2014

Homework Help: Physics

Posted by James on Saturday, April 5, 2008 at 3:35am.

Two identical dragsters, starting from rest, accelerate side by side along a straight track. The wheels have identical angular acceleration. The wheels on one of the cars roll without slipping, while the wheels on the other slip during part of the time.
--------------------------------------------------------------------------------

(a) For which car, the winner or the loser, do the wheels roll without slipping?
The winner's wheels roll without slipping.

* Both dragsters reach the finish line at the same time.

The loser's wheels roll without slipping.



(b) For the dragster whose wheels roll without slipping, is there a relationship between its linear speed v (in m/s) and the angular speed (in rad/s) of its wheels?
Yes. The relationship is = rv, where r (in m) is the radius of a wheel.

There is no relationship between its linear speed and angular speed.

Yes. The relationship is v = r, where r (in m) is the radius of a wheel.

*Yes. The relationship is = v2/r, where r (in m) is the radius of a wheel.



(c) For the dragster whose wheels roll without slipping, is there a relationship between the magnitude a (in m/s2) of its linear acceleration and the magnitude (in rad/s2) of the angular acceleration of its wheels?

There is no relationship between the magnitude of its linear acceleration and the magnitude of the angular acceleration of its wheels.

*Yes. The relationship is a = 2/r, where r (in m) is the radius of a wheel.

Yes. The relationship is = ra, where r (in m) is the radius of a wheel.

Yes. The relationship is a = r, where r (in m) is the radius of a wheel.

The ones I selected for the answer has the * by them. Are the correct?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A cyclist starts from rest and pedals such that the wheels of his ...
physics - Two thin rectangular sheets (0.09 m 0.46 m) are identical. In the ...
physics - Two thin rectangular sheets (0.09 m 0.46 m) are identical. In the ...
Physics - Two thin rectangular sheets (0.29 m 0.40 m) are identical. In the ...
physics - Two thin rectangular sheets (0.22 m 0.35 m) are identical. In the ...
physics help - Two thin rectangular sheets (0.15 m 0.50 m) are identical. In ...
physics help - wo thin rectangular sheets (0.13 m 0.52 m) are identical. In the ...
first aid - Two thin rectangular sheets (0.09 m 0.54 m) are identical. In the ...
physics - Two thin rectangular sheets (0.06 m 0.52 m) are identical. In the ...
Physics - the car has wheels of radius 0.3 m and is travelling at a speed of 36 ...

Search
Members