Tag Archive for: forces
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Frequently Made Errors in Mechanics: Momentum and Impacts
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An impact is an impulse (change of momentum) that involves arbitrarily large forces acting very briefly. These result in near-instantaneous…
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Frequently Made Errors in Mechanics: Friction
1. Direction of the normal
Definition: The normal force that body A exerts on body B is that force of minimum magnitude which suffices to…
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Frequently Made Errors in Mechanics: Forces
Notation: On this page, a circumflex signifies an average.
1. Forces as vectors
A force is a vector, i.e. has magnitude and direction.…