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In this video we look at the tipping of objects and the underlying conditions. An object tips whenever the tipping moment around the tipping point is greater than the counter torque that tries to keep the object in balance. Tipping is explained in detail using an excavator as an example. We will also explicitly determine the supporting forces (axle forces) on the front and rear wheels. To do this, we use the torque equilibrium and the force equilibrium. 00:00 Tipping of an excavator around the front wheels 01:38 Tipping moment vs. counter torque 03:39 Tipping condition I (comparison of torques) 04:33 Free cut 05:49 Calculating the contact force on the rear wheels 06:59 Calculating the contact force on the front wheels 07:56 Influence of the load on the contact force 09:30 Tipping condition II (contact force = 0)