A pile driver, shown in the diagram, of mass 500 kg is allowed to fall from rest through a distance of 1.9 m on to a 300 kg concrete pile to drive it into the ground.Each impact drives the pile into the ground by a further 150 mm. Assuming that the pile driver remains in contact with the pile after impact and that momentum is conserved, Using D'Alembert's principle, solve:

 

1)The kinetic energy of the driver and pile combination immediately after impact.

2)The change in potential energy of the driver and pile combination on moving into the ground.

3) the average retarding force that brings the pile and driver to rest?

Answer rating: 100% (QA)

To solve this problem using DAlemberts principle we will first calculate the initial kinetic energy ... View the full answer