if both normal and tangential force have the value zero.
When an objects net force is zero, its acceleration is zero. No force , no acceleration.
To find the net force of two objects acting in the same direction, simply add the individual forces together. The net force will be the sum of the individual forces acting on the objects.
0; zero net force
Objects will accelerate if there is a net force acting on them.
unbalance force
Not necessarily. The net force being 0 means the object is in translational equilibrium, but the net torque can still be non-zero if there are unbalanced forces causing rotation.
The net force on an object at rest is 0.
Friction is when two objects touch each other, either smooth or rough friction causes the object to slow down. Also an unbalanced force is when the net force isn't 0 which causes a object to move and cause friction other than a balanced force is when the net force is 0.
Net force is 0
Net force is 0
You must know the the direction so then you know if you either subtract or add. For example , if the the direction of the force is in opposite then you would have to subract each net force.
Yes, you will have a net force but its magnitude is zero if it does not cause any acceleration.