You place a book of mass 5.00 kg against a vertical wall. You apply a constant force F S to the book, where F = 96.0 N and the force is at an angle of 60.0o above the horizontal (Fig. P5.75). The coefficient of kinetic friction between the book and the wall is 0.300. If the book is initially at rest, what is its speed after it has traveled 0.400 m up the wall?
Some on test 2 notes GW1:block mass m1=10 at rest on rough horiz surface.Connected to hanging mass m2=15 by massless string across massless frictionless pulley.Speed of blocks after released and fallen d=1.5m if coeff btwn block 1 and surface is uk=0.5 Same question w angular speed of pulley Ex2) hoop w radius 0.5 and m=2.Rolls w/out slipping 1.5m down plane inclined at 30 deg above horiz.Speed of hoop at bottom Angular speed at bottom • KEtrans- if obj center of mass moving • KErot- if obj it rotating about its center of mass • Work done by constant force/torque. Usually cos180/0(+1,-1) • PEg-When height of center of mass moves (Peg=mgh) h in cm • Static eq- when all F=0(in x & y..Trans eq) andT=0 (torques) probs:
