When holding or lowering a load with a tackle, the friction will take part of the weight, and the force required on the hauling part is less than that required to hoist the load.
Xa ubambo okanye uhliso lomthwalo lwentambo yenqanawa, uxinzelelo lungathatha indawo yobukhulu kunye namandla otsalo lwendawo encinci kunye nolufunwayo lokutsala umthwalo.