Friction coefficient. Static friction. Kinetic or dynamic friction. Sliding friction. Rolling friction.


Law of conservation of energy. Energy sources. Renewable energy. Non-renewable energy. Chemical energy. Elastic energy. Electric energy. Gravitational energy. Internal energy. Magnetic energy. Mechanical energy. Principle of the conservation of mechanical energy. Mechanical wave energy. Nuclear potential energy. Kinetic energy. Potential energy. Nuclear potential energy. Quantum chromodynamics binding energy. Radiant energy. Rest energy. Soundwave energy. Thermal energy. Wind wave energy. Energy harvesting. Unconventional energy.


Translation; Rotation; Rototranslation; Plane motion; Uniform motion; Uniform straight motion; Smoothly accelerated motion; Relative motion; Cyclical motion; Circular motion; Steady motion; Transient motion; Anharmonic motion.


The force may be thought of as an influence which tends to change the motion of an object. Forces are inherently vector quantities, requiring vector addition to combine them. The SI unit for force is the …

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To accelerate means to speed up. The greater the acceleration, the greater the change in velocity over a given time. The average acceleration is the rate at which velocity changes: \[a_{avg}=\dfrac{\Delta v}{\Delta t}=\dfrac{v_f-v_0}{t_f-t_0}\] …

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