Tangential Acceleration

  • Thread starter johnnyyy
  • Start date
  • #1
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Homework Statement


If a car with 30.0 cm tires is accelerating at 0.75 m/s^2, what is the angular acceleration? How fast will the tires be spinning from rest if the car accelerates for 1.50 minutes? And finally how fast will that be linearly?
T=90 seconds
R=.3 m

Homework Equations


Vt=rw

a=wf-wi/t

W=ø/t


The Attempt at a Solution



Homework Statement


Will a car traveling at exactly 20 mph around a corner have a tangential acceleration? Centripetal acceleration? Explain.


Homework Equations





The Attempt at a Solution

 
Last edited:

Answers and Replies

  • #2
Andrew Mason
Science Advisor
Homework Helper
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Homework Statement


If a car with 30.0 cm tires is accelerating at 0.75 m/s^2, what is the angular acceleration? How fast will the tires be spinning from rest if the car accelerates for 1.50 minutes? And finally how fast will that be linearly?
T=90 seconds
R=.3 m

Homework Equations


Vt=rw

a=wf-wi/t

W=ø/t


The Attempt at a Solution



Homework Statement


Will a car traveling at exactly 20 mph around a corner have a tangential acceleration? Centripetal acceleration? Explain.


Homework Equations





The Attempt at a Solution

It is a poorly worded question, but it appears to be asking you to find the angular acceleration of the wheels, not the car.

AM
 
  • #3
221
4
you are given dv/dt, but you need to find d\omega/dt. Use v= \omega r
 

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