3. Distinguish between:
(a) balanced and unbalanced forces.
(b) contact and non-contact forces.
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Explanation:
Balanced force= pair of force that are equal in magnitude but opposite in direction their resultant force is zero.
Unbalanced force= unequal forces acting on the given objects their resultant force is non zero.
Contact force= the force which act only when objects are in physical contact with each other.
Non-Contact force= the force of interaction which act on an object without its having any direct physical contact with another body.
hope this help!
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