What are your thoughts on this?Anjum S Khan said:
Force is rate of change of momentum. But here change of momentum is zero, so Force should be zero.Chestermiller said:
Change the ball to say some other rigid body which is incompressible anyhow, with very heavy mass. I am pushing it but can't make it move. Then ?SteamKing said:
There's a building which you are pushing against. The building does not move, yet your muscles are straining to push it over. Are you exerting no force against the side of this building?Anjum S Khan said:
What is the difference between force and net force?Anjum S Khan said:
SteamKing said:
Since pressure is defined as force per unit area, if you are exerting pressure, ipso fatso, you are exerting a force.Anjum S Khan said:
Newton's 2nd law says that the NET force acting on a body is equal to its mass times acceleration. It doesn't say that any individual force on a body is equal to its mass times acceleration.Anjum S Khan said:
A force is a physical quantity that causes an object to accelerate or change its motion. When the net force acting on an object is zero, it means that there is no overall force acting on the object and it will either remain at rest or continue to move at a constant velocity.
A force can be zero if all the forces acting on an object cancel each other out, resulting in a net force of zero. This can happen when two equal and opposite forces are acting on an object, or when the vector sum of all the forces is zero.
If the net force on an object is zero, it means that the object is in a state of equilibrium and will not accelerate. This can occur when the object is at rest or moving at a constant velocity.
Yes, a force can be zero and still cause an object to move. This can happen if there are other forces acting on the object that are not in the same direction as the zero force. The object will then move in the direction of the non-zero forces.
To determine if the force will be zero in a given situation, you need to consider all the forces acting on the object and their direction. If the forces are balanced and cancel each other out, the net force will be zero. If there is an unbalanced force, the net force will not be zero and the object will accelerate. Additionally, if the object is at rest or moving at a constant velocity, the net force must be zero.