What is the heaviest load that can be safely lifted if the jib capacity is 8 tons and the overhaul ball weighs 900 lbs?

To determine the heaviest load that can be safely lifted, it is important to consider both the jib capacity and the weight of the overhaul ball. The jib capacity indicates the maximum weight that the crane can lift at a specified radius with the attachment.

Firstly, convert the overhaul ball weight from pounds to tons, since the jib capacity is provided in tons. There are 2,000 pounds in a ton, so the weight of the overhaul ball in tons would be:

900 lbs ÷ 2000 lbs/ton = 0.45 tons.

Next, to find the maximum load that can be lifted, subtract the weight of the overhaul ball from the jib capacity:

8 tons (jib capacity) - 0.45 tons (overhaul ball) = 7.55 tons.

Finally, convert this back to pounds to understand the total weight that can be lifted:

7.55 tons x 2,000 lbs/ton = 15,100 lbs.

This calculation indicates that the heaviest load that can be safely lifted, accounting for the weight of the overhaul ball, is indeed 15,100 lbs.