Force is an external agency which produces or tends to produce, destroys or tends to destroy the motion of a body . https://youtu.be/QOKdPtnePeg a force while acting on a body may (a) change the motion of a body (b) retard the motion of a body (c) balance the forces already acting on a body, and (d) give rise to the internal stresses in a body Force is usually expressed in Newtons (briefly written as N). it may be noted that, 1kgf= 9.81N In order to determine the effect of a force acting on a body, we must know the magnitude of the force, the line of action of the force, the nature of the force i.e, pull or push and the point at which the force is acting. Moment of a force: the turning effect produced by ...
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