[填空题]
The bolts on the cylinder head diym+3mn,kw gox ( 38kw)e e;8wl,k mhof an engine require tightening to a to2 f8 eal-yp1( nh8ki7i a y2yec3wfux+rque of 3812y7h8f 28yeii+wu a -c(pelk fx3yan $m \cdot N$ If a wrench is 28 cm long, what force perpendicular to the wrench must the mechanic exert at its end? N If the six-sided bolt head is 15 mm in diameter, estimate the force applied near each of the six points by a socket wrench (Fig. 8–41). N
Post time 2025-2-18 20:00:22
