Calculating Push & Pull Forces | Andre's Physics Questions

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Calculating the forces involved in pushing and pulling an object, such as a car stuck in snow, reveals that rocking the vehicle generates greater force due to resonance. When a force is applied at the object's natural resonant frequency, it absorbs maximum energy, leading to increased oscillation amplitude. This principle is similar to pushing a child on a swing, where timing the pushes with the swing's frequency enhances movement. Understanding resonance can help improve techniques for freeing stuck vehicles. Exploring this concept further will provide deeper insights into effective force application.
DJLambo2K
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Hello,

I'm new to this forum with little knowledge of physics.

Does anyone know how to calculate the force created by pushing and pulling on object (i.e. a car stuck in the snow) versus pushing versus pulling?

I.e., which of the three forces is the greatest?

My physical experience tells me that when I rock (push and pull) a vehicle stuck in the snow it results in a much superior force to move the vehicle versus solely pushing or less so, pulling.

Many thanks,
Andre
 
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Rocking a car to get it out of a snow hole is an example of resonance. If you aren't familiar with resonance then you need to read up on that.

Many systems have a natural resonant frequency. If a source of energy (you) apply a force at the resonant frequency of the load (the car in the hole) it will absorb the maximum amount of energy from the source. The amplitude of oscillation will also be at a maximum. Once the amplitude of the oscillation reaches the depth of the hole it will come out.

The situation is similar to a man pushing a child on a swing. To get the child to swing higher and higher the man pushes the child at the resonant frequency of the swing (which can be modeled as a pendulum).
 
Many thanks for your quick reply!
I will look up and read up on resonance!

All the best!
Andre
 
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