Angular position, speed, and acceleration

Click For Summary
SUMMARY

The discussion focuses on calculating the angular acceleration and the angle of rotation for a dentist's drill that starts from rest and achieves a final angular velocity of 2.52 x 104 revolutions per minute (rev/min) after 3.30 seconds of constant angular acceleration. The angular acceleration is determined to be 7636.36 rad/s2. Additionally, the angle through which the drill rotates during this period is calculated to be 4150 radians, although the initial answers were in incorrect units.

PREREQUISITES
  • Understanding of angular kinematics equations
  • Knowledge of unit conversion from revolutions per minute to radians per second
  • Familiarity with angular acceleration concepts
  • Basic proficiency in physics problem-solving techniques
NEXT STEPS
  • Learn about unit conversion techniques for angular measurements
  • Study the derivation and application of angular kinematics equations
  • Explore the concept of angular displacement in rotational motion
  • Investigate practical applications of angular acceleration in engineering contexts
USEFUL FOR

Students in physics, particularly those studying rotational motion, engineers working with rotating machinery, and anyone needing to understand angular kinematics and its applications.

aaronb
Messages
22
Reaction score
0

Homework Statement


A dentist's drill starts from rest. After 3.30 s of constant angular acceleration, it turns at a rate of 2.52 multiplied by 104 rev/min.

Find the drill's angular acceleration.

Determine the angle through which the drill rotates during this period

Homework Equations


\omegaf=\omegai+\alphat
\varthetaf=\vartheta<sub>i</sub>+\omegait+(1/2)\alphat2

The Attempt at a Solution



2.52x10^4=0+\alpha3.3=7636.36
\varthetaf=0+0+1/2=4150

I know the answers are in the wrong units so can someone tell me what to do change my rev/min into rad/s2 for the first part and to find rad for the second part?
 
Last edited:
Physics news on Phys.org
Thanks for the link LowlyPion it helped me a lot.
 

Similar threads

  • · Replies 17 ·
Replies
17
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
10
Views
2K
  • · Replies 5 ·
Replies
5
Views
14K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 12 ·
Replies
12
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
15
Views
2K
  • · Replies 2 ·
Replies
2
Views
4K
  • · Replies 7 ·
Replies
7
Views
3K