When a body moves on a surface having some friction what happens
a) it looses kinetic energy but momentum is constant, b) it looses kinetic energy but gains potential energy,
c) kinetic energy and momentum both decreases or d) mechanical energy is conserved
Answers
Mechanical Energy is Conserved.
Explanation:
Mechanical vitality is the whole sum of the potential and dynamic energies in a framework. The standard of the preservation of mechanical vitality expresses that the complete mechanical vitality in a framework (i.e., the aggregate of the potential in addition to dynamic energies) stays consistent as long as the main powers acting are traditionalist powers.
Motor contact, then again, is a non-moderate power, since it acts to lessen the mechanical vitality in a framework.
Note that non-preservationist powers don't generally decrease the mechanical vitality; a non-moderate power changes the mechanical vitality, so a power that expands the all-out mechanical vitality, similar to the power given by an engine or motor, is additionally a non-traditionalist power.
Considering the friction into effect now, The body keeps itself into motion without the presence of friction, but with friction coming into effect the accelerating motion reduces and finally becomes ZERO owing to frictional effect. Hence, following the principle of the conservation of Mechanical Energy, the total energy before and after friction coming into effect, Mechanical Energy is Conserved.