Can any. one explain this pleased
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component of a force is the projection of the force vector along the displacement;in other words in order to find the work done on the object due to a constant and diagonal force F and the object moves a distance D then u need to write :
W = F x D x cos ( F,D )
this formula is always applied to find the work
and cos ( F,D ) is cosine the angle between F and D
so if we take examples : cos 90 = 0
which means that work done by any force normal to displacement is zero
cos 0 = 1 which means the force is parallel to the displacement and having same sense so W = F x D
cos 180 = -1 which means work done by the force that is parallel to displacement but in opposite sense is resistive like frictional force and W= - F x D
W = F x D x cos ( F,D )
this formula is always applied to find the work
and cos ( F,D ) is cosine the angle between F and D
so if we take examples : cos 90 = 0
which means that work done by any force normal to displacement is zero
cos 0 = 1 which means the force is parallel to the displacement and having same sense so W = F x D
cos 180 = -1 which means work done by the force that is parallel to displacement but in opposite sense is resistive like frictional force and W= - F x D
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