Question

PHYSICS 254 EXAM 3 Fall 2019 Dr. Alfer Cab Name SHOW ALL WORK, USING THE BACK OF A PAGE IF NECESSARY. DRAW A BOX AROUND THE FINAL ANSWER Pr e ther will the corr ere Manor select the awer which cro wn the won the who do not re calculations and you do A to show o n Please clinary Indian your wall 1) For each of the following variables, list the symbol used in equations to represent it and the units you would expect for it: (1 pts each) symbol unit (a) angular velocity (b) angular acceleration (c) period (d) momentum T is called? d) Time 2) In the equation, Ir=la , the symbol a) Tension b) Tangential c) Torque I is called? 3) In the equation, St=la , the symbol d) Instantaneous a) Inertia b) Impulse c) Initial 4) In an elastic collision, which of the following MUST be true? a) momentum is conserved, but kinetic energy is not b) kinetic energy is conserved, but momentum is not c) neither momentum nor kinetic energy are conserved d) both momentum and kinetic energy are conserved If two bodies stick together after a collision this is called: a) perfectly inelastic b) inelastic c) elastic d) recoil

Answer 1

) gongula Taal/s vele ily ) agulae cl perirad radlls acc T see P d monanlim aT Torque tioom Inedin mom enl Lorvceved ane and inelc both mom enlum