Why do wheels of vehicles spin at one spot in mud?

When a vehicle is stuck in mud, the wheels spin at one spot because the mud is acting like a viscous fluid. This means that the mud has a high resistance to flow, which prevents the wheels from moving forward. As the wheels spin, they create a rut in the mud, which further increases the resistance to flow and makes it even harder for the wheels to move.

In addition, the mud can also act like a lubricant, which reduces the friction between the wheels and the ground. This makes it even more difficult for the wheels to get traction and move forward.

There are a few things that can be done to help prevent a vehicle from getting stuck in mud. First, it is important to avoid driving in muddy areas if possible. If you do get stuck, it is important to stay calm and not try to force the vehicle out of the mud. This can only make the situation worse. Instead, try to gently rock the vehicle back and forth until it is able to get free. You may also need to use a shovel to remove some of the mud from around the wheels.