Acceleration in an object could be zero even when several forces are acting on it. This happens when all the forces cancel out each other i.e., the net force acting...
Yes. Even when an object experiences a net zero external unbalanced force, it is possible that the object is travelling with a non-zero velocity. This is possible only when the...
False
Although internal forces are balanced, they cause no work to be done on a body. It is the external forces that have the ability to do work. Hence, external forces...
Sir /Madam,
My daughter chose the last one "irrespective of the signs of the charges" which is option d but her school teacher is saying option (C) . can some one...
(b) kinetic energy
Explanation:-
Though work done by external forces will change the total energy of the system, work done by the internal forces will increase kinetic energy only. So when both...
(a) total energy
Explanation:-
External forces will either change KE or PE or both of a system. Since total mechanical energy (KE+PE) of a system is conserved when no external force acts,...
