Two, The Force of Gravity and The Normal Force (the force that the gymnast exerts on the bar)
They ask you this to confuse you into thinking her arms count as a tension force, but they do not.
The forces acting on a stationary object are:PushPullGravity
Gravity, Momentum and Compression.
A mass is hanging from a spring experiences the force of gravity.
When a pen is hanging, two forces act on it - the upthrust and the force of tension in the string.
gravity its always acting on you
All of the forces together balance out. The resultant of the forces is therefore nil. That applies to all equilibrium.
Relative to the table, the book remains stationary because there are no outside forces acting on it except gravity which keeps it lying on the table.
Normal contact force (upwards) Gravity/Weight (downwards) Equal to NCF
If the object is not moving, then the only thing you can be sure of is that since it's not accelerating, all of the forces acting on it add up to zero. Just the fact that it's not moving is not enough information to tell you that there are no forces on it.
The forces acting on a stationary object are balanced. If you were to add up all the forces (taking the directions into account, you would get a total of 0. There are always forces acting on a object, such as gravity, so you cannot say that there are no forces acting on it. You can say that the forces are balanced.
Yes hanging load. Its weight ie force due to gravity is acting downward. And the tension the rope is acting upward. Both the forces are acting on the load but as they are equal in magnitude and opposite in direction the resultant becomes zero.
I do believe that it is either kinetic or potential energy. From jellyfish