0
Upcoming SlideShare
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Standard text messaging rates apply

# 2.4 - Uniform Circular Motion

1,145

Published on

Published in: Education
1 Like
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

Views
Total Views
1,145
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
18
0
Likes
1
Embeds 0
No embeds

No notes for slide

### Transcript

• 1. MechanicsTopic 2.4 Uniform Circular Motion
• 2. Circular Motion A body moving with uniform speed in a circle is changing velocity as the direction changes. This change of velocity, and the acceleration is directed towards the centre of the circle This acceleration is called the centripetal acceleration
• 3. Vector Diagrams velocity at a tangent uniform speed Acceleration and force directed towards the centre
• 4. Centripetal Acceleration The expression for centripetal acceleration is a = v2 = 4π2r r T2  Where v is the velocity at any instant (i.e.the constant speed)  And r is the radius of the circle  T is the time period of one complete circle
• 5. Centripetal Force The expression for centripetal force is F = mv2 r  Where v is the velocity at any instant (i.e.the constant speed)  m is the mass of the object  And r is the radius of the circle
• 6. Examples of Centripetal Force include the gravitational force keeping the moon in its orbit the friction acting sideways on the tyres of a car turning a corner the tension in a rope, when a bucket of water is swung around your head