A plank of mass M and length L is attached to a wall at one end, as shown. The plank rests on a support a distance D away from the wall, where D << L/2. This configuration is known as a cantilever.Plank, mass M A plank of mass M and length Lis attached to a wall at one end, as shown. The plank rests on a support a distance D away from the wall, where D< L/2. This configuration is known as a cantilever. 1) The force exerted on the plank by the wall points Up Down To the right o Up and to the right Down and to the right Submit