Unbalanced system of forces can produce acceleration as well as deformation in a body, but balanced system of forces produces deformation only explain.

Unbalanced system of forces can produce acceleration as well as deform

1.	Unbalanced system of forces can produce acceleration as well as deformation in a body, but balanced system of forces produces deformation only explain.
Answer» SOLUTION :In case of an unbalanced system of forces acting on a body, a resultant force acts at the centre of mass . The body accelerates, as per the equation, F= ma. But for a balanced system fo forces the resultantforce is zero andhence acceleration ofthe centre of mass is zero However in both the situations, different PARTS of the body MAY have relative velocities with respect to one another. Hence, deformation may take place. For example, if a rubber ropeis pulled on both ends with equal forces , the rope extends in length ,i.e., it is deformed, but its centre of massremains steady atone place . when the forces applied at theends are unequal, the rope not only extends , but ALSO MOVES in the direction of thegreater force.