[填空题]
The bolts on the cyliniq ikp:p.q+pz e4(t4 7zw:g-j g*iyqbdb /t6t.icb( if9 di 3xwa8s7qmer head of an engine require tightening to a torque of 38 3i (wxqbb.t8ia f s9dc7 6mti/$m \cdot N$ 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
