Change in velocity, average acceleration

Click For Summary
SUMMARY

The discussion focuses on calculating Earth's angular displacement, change in velocity, and average acceleration during a 2.70-day period in its orbit around the Sun. The angular displacement was successfully calculated as 4.64×10-2 radians. The user seeks clarification on the relationship between tangential velocity and centripetal acceleration in the context of uniform circular motion, indicating a need for deeper understanding of these concepts.

PREREQUISITES
  • Understanding of angular displacement and its calculation
  • Familiarity with tangential velocity in circular motion
  • Knowledge of centripetal acceleration formulas
  • Basic grasp of uniform circular motion principles
NEXT STEPS
  • Study the relationship between tangential velocity and centripetal acceleration in uniform circular motion
  • Review the derivation of centripetal acceleration formula: ac = v2/r
  • Explore the concept of angular velocity and its application in orbital mechanics
  • Practice problems involving angular displacement and average acceleration in circular motion
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and orbital dynamics, as well as educators looking to clarify concepts related to circular motion and acceleration.

salaam
Messages
17
Reaction score
0

Homework Statement


Earth's orbit around the SUn is nearly circular. THe period is 1 year = 365.25 days. In an elapsed time of 2.70 days, what is Earth's angular displacement? what is the change in Earth's velocity (perpendicular to the average velocity) What is the Earth's average acceleration during 2.7 days? (perpendicular to the average velocity)


Homework Equations


a =v/t
v = s/t


The Attempt at a Solution


I have already completed the first question and got 4.64×10-2 rad and it was right.

but the next two I'm having major problems with. and i am so confused. anyone help!
 
Physics news on Phys.org
You know how fast the Earth's tangential velocity is (or you can get it using the angular displacement and time).

How does the tangential velocity relate to the centripetal acceleration for uniform circular motion?
 
I'm really not sure.. can you elaborate?
 

Similar threads

Relating acceleration to distance and time
  • · Replies 5 ·
Replies
5
Views
3K
Momentum: instantaneous or average?
  • · Replies 9 ·
Replies
9
Views
1K
Solve Angular Velocity & Acceleration - Dimensional Analysis
  • · Replies 3 ·
Replies
3
Views
2K
Constant Acceleration -- Equation for Vavge
  • · Replies 5 ·
Replies
5
Views
1K
What is the average acceleration of a cart with photogates 30 cm apart?
  • · Replies 8 ·
Replies
8
Views
1K
Calculate average speed/acceleration for the given function
  • · Replies 1 ·
Replies
1
Views
2K
Change in Angular Velocity While Orbiting With No Torque
  • · Replies 30 ·
2
Replies
30
Views
4K
I need some clarification for a high school vectors question (accelerating bird)
  • · Replies 14 ·
Replies
14
Views
2K
How Do You Calculate a Car's Average Velocity?
  • · Replies 2 ·
Replies
2
Views
2K
Velocity and Acceleration Extra Credit Problem
  • · Replies 1 ·
Replies
1
Views
2K