Fizika 10 Miakishev Konspekt Uroka Po Teme Statika Site

The vector sum of all external forces acting on the body must be zero.

Statics is the branch of mechanics that studies the conditions for the equilibrium of bodies. Equilibrium is a state where a body remains at rest or moves uniformly and rectilinearly relative to a chosen inertial frame of reference. 2. Key Concepts fizika 10 miakishev konspekt uroka po teme statika

An infinite line passing through the force vector. Lever Arm ( The vector sum of all external forces acting

): The shortest distance (perpendicular) from the axis of rotation to the line of action of the force. The product of the magnitude of the force ( ) and its lever arm ( M=F⋅dcap M equals cap F center dot d Units: Newton-meters (N·m). The product of the magnitude of the force

(Clockwise moments are usually considered negative, and counter-clockwise moments positive).

The point through which the resultant of all gravitational forces acting on the particles of the body passes, regardless of the body's orientation. For simple geometric shapes made of uniform material, it coincides with the geometric center.