M. 347. Fix a wooden skewer to the rim of the table. Gradually load its free end, or hang a spring balance to it. Measure the torque \(\displaystyle M\) needed to break the skewer, and the work \(\displaystyle W\) done by the load. Will the measured data change if the length \(\displaystyle \ell\) of that part of the skewer which sticks out of the table is halved?
Deadline expired on 10 February 2015.