This second class lever is used when taking off for a jump or pushing against the blocks in a sprint start. 3. Third class lever – the effort is in the middle between the fulcrum and the load.

In the three lever examples on the previous page, the second class lever provides the most mechanical advantage and this explains why it is so crucial that it operates at the weight bearing foot.

First- and second-row occupants will appreciate all the new Lexus LX has to offer — but unlucky third-row passengers may have some choice words for the driver.