PHYSICS 1250 Study Guide - Quiz Guide: Angular Velocity, Angular Acceleration, Disneymania

• School: Ohio State University
• Department: Physics
• Course: PHYSICS 1250
• Professor: All

Document Summary

Start quiz 20 minutes before end of class. 1 rm i i rm i i i. 1 meter (m) = 3. 281 feet 1 mile = 5280 feet 1 hour =3600 seconds |g|=9. 80m/s2 g=6. 67x10-11nm2/kg2 d/dx(axn)=naxn-1 xmdx= xm+1/(m+1), m -1 v=v0+at x-x0=v0t+ at2 v2=v0. 2+2 ( - 0) - 0= ( 0+ )t circumference of circle =2 r. |ar|=v2/r vt= r |at|= r fext=ma (ke)t= mv2 (ke)r= i 2 work=f d, power=dw/dt, Problem 1) the fabulous dj mc-brutus has a turntable that is rotating at 0. 50 revolutions/sec. The angular velocity of the turntable in radians/sec is: Problem 2) the angular position of a point on mc-brutus"s turntable is given by. If the turntable has moment of inertia, i =75 kg-m2what is the magnitude of its torque at t=2 seconds? (hint: use calculus!) Problem 3: suppose mc-brutus"s other turntable has rotational inertial = 200 kg-m2 and kinetic energy = 400j. Problem 4: a rotating wheel requires 3. 08 seconds to rotate through 232 radians.