The crane is lifting a 170 kg crate upward with an acceleration of 1.1 m per sec squaredThe cable from the crate passes over a solid cylindrical pulley at the top of the boomThe cable is then wound onto a hollow cylindrical drum that is mounted on the deck of the cranethe engine applies a counterclockwise torqueWhat is the magnitude of the torque? Ignore the mass of the cable.
Rockwool (glass fibre) insulation is ghastly stuff both for the fitter and for the environmentIt contains all sorts of nasties and the fibres can be inhaled and cause all sorts of troublebest suggestion is to steer well clearFor a more environmentally sound and healthy option I would use Sheep's Wool, Flax or recycled clothing insulationThe prices have dropped dramatically over recent years and they are the only sensible option these daysAs for the insulation that's already therewell, it's already there and can probably just be left in place - more hassle and discomfort to remove than to leave thereJust top up to a good level with some of the good stuff.
Were you given a diameter for the drum? I believe you need that information.
looks like Ernie a has got it covered,but you could get in touch with your local council or get advice from the green brigade
