14lecture2a08

14lecture2a08 - Physics 2A Lecture 14: Feb 8 Vivek Sharma...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 2A Lecture 14: Feb 8 Vivek Sharma UCSD Physics
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Force In Uniform Circular Motion 2 r Object of mass m in uniform circular motion of radius r v experiences centripetal acceleration: a r = r 2 r v F m ,directed along a r F 2nd law : a m =⇒ = G G G
Background image of page 2
Understanding Circular Motion
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Free Body Diagram For Body in Circular Motion
Background image of page 4
Conical Pendulum
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Circular Motion: Car Rounding A Flat Curve sm a x Car is rounding a flat, curve with radius R. If coeff. of static friction betwee unbanked n road/tire is ,what is themax. speed v , that car can take the curve without sl ? iding μ 2 rad max rad / max v a R va Only horizontal force is due to friction f by road = r max s s ad barely does not Frictional force must point towards center of to cause a If the car radially, f must be Max. static friction available slip static friction f= n m : g μ= μ : 2 max s mv mg R ⇒μ = max s vg R ⇒= μ
Background image of page 6
Rounding A Banked Curve Without Friction Car on icy road "No" friction. Road is banked at angle w.r.t horizontal.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 11

14lecture2a08 - Physics 2A Lecture 14: Feb 8 Vivek Sharma...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online