Can more than one force act on an object?
Absolutely. To prove this, picture a man standing in a field. His weight is pulling him downwards, but if that were the only force acting upon him, he would have to be in motion. Clearly, there is another force acting upon him to counteract his weight, which in this case would be the force of the ground pushing up on him. For any object at equilibrium, there must be either no force acting upon it, or multiple forces acting upon it, and there is no upper limit to the number of forces acting upon an object.
Net force is the sum of all forces that act on an object. An unbalanced force means that net force is not equal to zero. If that is the case, the object will accelerate. Net force is the sum of all forces that act on an object. An unbalanced force means that net force is not equal to zero. If that is the case, the object will accelerate. Net force is the sum of all…
The change in motion or acceleration of an object depends on its mass and the forces acting upon it. If an equal force acts on two objects of different mass then the more massive object will accelerate at a lower rate than the less massive object. If no other forces act on the objects then both will continue indefinitely.
Newtons second law indicates that when a net force acts on an object it must accelerate does this mean that when two or more forces are applied to an object simultaneously it must accelerate?
Newton's secong law indicates that an object accelerates in the presence of a net force on it. But it doesn't mean that an object should accelerate when two forces act on it. It depends more on the orientation or direction of force. Say if 2 forces act in opposite directions then the net force would be 0 and thus no acceleration is caused. Hence take NET FORCE, not just force acting into consideration.
If 2 force act on the object in the same or opposite directions what willbe the net force of the object in 2 cases?
There is no net force OF the object. If the forces act in the same direction, the net force is magnitude of the net force is the sum of the forces and acts in the same direction. If the forces act in opposite directions, the magnitude of the net force will be the difference between their magnitudes and it will act in the direction of the larger of the two forces.
What is the net force of an object when a 20n and a 20N force act in the same direction on an object?
Force is a vector quantity. So direction is much more important. Here in this problem both forces though of equal magnitude act in the same direction. So we have to add them. Hence 40 N will be the net force acting on the body. Its direction will be the same as the one in which both parent forces act.
There is no such thing as 'an unbalanced force', any more than a trouser, a scissor, a tweezer, or a clapping hand. A group of two or more forces is balanced if the vector sum of all of them is zero, or unbalanced if it's not. When a group of two or more forces is unbalanced, then the object they act on exhibits acceleration.
Gravitational force is a universal force which act on each and every object present in this universe at more or less intensity. The two people will have gravitational force but of very low intensity so we can not sense it but ya they do have tha. It is by far the weakest of the fundamental forces, and you will never feel it between yourself and any normal object (below the mass of something like a…
A net force is the vector sum of all the forces that act on an object. If two forces act in the same direction, just add their magnitudes; if they go in opposite directions, subtract them. One case that is very common is that when you pull an object, there is an opposing friction force. In this case, the net force will be less than the force with which you are pulling. Once you are…