用一个扳手旋转一个六边形的螺帽,有3对相同的等大相反的力作用在上面,螺帽最大直径为5cm,每一对力为250N,总的力矩是多少?Ahexagonalnutisbeingturnedbyaspanner;thenuthasthreeequalcouplesactingon

Question

用一个扳手旋转一个六边形的螺帽,有3对相同的等大相反的力作用在上面,螺帽最大直径为5cm,每一对力为250N,总的力矩是多少?
A hexagonal nut is being turned by a spanner;the nut has three equal couples acting on it.The nut has a maximum diameter of 5cm.The force of each couple is 250N.What is the total torque acting on the nut?

Answer 1

since the directions of all the three single torque are same, so the total torque of the system is equal to the sum of all the torques.
3*(250N*0.05m)=37.5Nm