We never think consciously about motion. How many times have we said something like: "I’m not strong enough to lift it!" or partied so hard we didn’t have enough energy to study for a test? Mechanics Part 1 will help us understand all this from the physical point of view. We will see what can cause, for example, a disc prolapse and to which mechanical loads our bodies are subjected. Here you can proceed to Mechanics Part 2.
Momentum can be understood by looking at the mass and velocity of an object. Mass is a property of an object that measures the amount of matter in an object. Velocity is the amount of distance an object travels over a given time. It is a vector quantity so directionality is also expressed. Momentum is the product of mass and velocity, also a vector quantity. In practicality, momentum refers to the quantity of motion possessed by an object. The unit of momentum is kilogram-meter per second (kg-m/s).
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