The Equations of Rotational Kinematics help

Click For Summary
SUMMARY

The forum discussion centers on the analogy between rotational kinematics and linear kinematics, specifically regarding a fan that has completed 2 revolutions. The consensus is that the quantity of 2 revolutions directly corresponds to displacement in linear kinematics, as it represents the change in position. The user dismisses velocity and speed as relevant since time is not mentioned in the context of the question. Thus, the correct answer is displacement.

PREREQUISITES
  • Understanding of rotational kinematics concepts
  • Familiarity with linear kinematics terminology
  • Knowledge of displacement, velocity, and speed definitions
  • Basic grasp of physics equations related to motion
NEXT STEPS
  • Study the relationship between angular displacement and linear displacement
  • Learn about the equations of motion in rotational kinematics
  • Explore the concept of angular velocity and its linear counterpart
  • Review examples of real-world applications of rotational kinematics
USEFUL FOR

Students studying physics, educators teaching kinematics, and anyone interested in understanding the principles of motion in both linear and rotational contexts.

layla2525
Messages
19
Reaction score
0
1.

Consider a fan that has rotated by a total of 2 complete revolutions from where it started. This quantity (2 revolutions) is analogous to what quantity in linear kinematics?

Position

Displacement

Velocity

Speed

Time





Time


Homework Equations



I am leaning towards velocity since displacement over time is velocity...

The Attempt at a Solution



 
Physics news on Phys.org
Is time mentioned at all in the question, aside from the possible answers?
 
no, it is not.
 
Then it's probably not anything to do with time, like velocity or speed.
 
so displacement
 

Similar threads

Perfectly inelastic collision between Projectile and a hinged disk
  • · Replies 26 ·
Replies
26
Views
1K
Kinematic Problem w/ Parabola: Solving w/ KE Theorem?
  • · Replies 25 ·
Replies
25
Views
3K
2 Masses and a Wheel (with mass)
  • · Replies 6 ·
Replies
6
Views
935
Find the initial velocity of a water rocket (mass changes)
  • · Replies 8 ·
Replies
8
Views
2K
Block on top of moving slab, with a rough surface - When does v_b=v_s?
  • · Replies 27 ·
Replies
27
Views
1K
Circular Constant Acceleration Formula
  • · Replies 4 ·
Replies
4
Views
2K
What Causes Discrepancies in Calculating Initial Angular Velocity?
  • · Replies 2 ·
Replies
2
Views
2K
Calculating Radial Acceleration of a Rotating Wheel
  • · Replies 2 ·
Replies
2
Views
4K
Pushing a stalled car out of an intersection
  • · Replies 1 ·
Replies
1
Views
2K
Rotational kinematics of a turntable
  • · Replies 6 ·
Replies
6
Views
7K