DieselShip's Online Content Library

Q1. A 1 tonne load is suspended from the end of a hoist cable. The cable is wound round a drum of effective diameter 0.6 m. Calculate EACH of the following:

(a) The acceleration of the load when being raised if the tension in the cable is 8.5 kN;

(b) The acceleration of the load when being lowered at 9 m/s if the tension in the cable is 9.81 kN;

(c) The acceleration of the load when being lowered if the tension in the cable is 11 kN;

(d) The driving power required at the drum when raising the load at 4 m/s and causing an upwards acceleration of 0.3 m/s².