PHY 2049L Study Guide - Quiz Guide: Friction, Conservative Force, Isolated System
Document Summary
For(cid:272)e: takes a(cid:374)(cid:455) (cid:448)alue (cid:271)et(cid:449)ee(cid:374) zero a(cid:374)d (cid:373)a(cid:454) possi(cid:271)le for(cid:272)e of stati(cid:272) fri(cid:272)tio(cid:374) f_s,(cid:373)a(cid:454) = (cid:894) _s(cid:895)n 0. Acceleration and force have tangential components; radial force produces centripetal acceleration; tangential force produces tangential acceleration; total force is sum of radial and tangential forces. Property of matter regarded as capacity for doing work (such as causing motion or interaction) Work done on system in the direction of displacement is the product of the magnitude of the force f and the magnitude of the displacement x. W = fd(cid:272)os , w = f d. Work is positive if force has component in direction of motion. Work is negative if force has component opposite in direction of motion. Work is zero if force has no component in direction of motion. Energy that a body possesses by virtue of being in motion. Total work done on an object is equal to change in its kinetic energy.
