Physics Ch 9 notes

Physics Ch 9 notes - • F = m v 2 r F = net force m = mass...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 201 Chapter 9 Notes o Uniform circular motion o Motion in a circle with constant speed o Velocity changes! o Instantaneous velocity always tangent to the circle o Period: Time to complete one revolution T = 2 π r T=period, v=speed, r=radius V o Centripetal acceleration o a c = v 2 /r o Acceleration due to change in direction in circular motion o In uniform circular motion, accelration has constant magnitude and points toward center Forces and centripetal acceleration
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: • F = m ( v 2 / r) F = net force, m = mass o Force causes circular motion o Directed toward center o Any force can be centripetal Loop-DA-Loop Ignore friction and only consider gravitational force (points down) and normal force on toy from track (toward center). Minimum speed at top of loop: mg = m( v 2 /r) v = √ rg m-mass, v-speed, r-radius, g-acceleration due to gravity...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online