If no external forces are acting on a moving object it will?
It will remain stationary if it is stationary, and it will remain in uniform motion if it is in motion.
If there are any forces acting on a stationary object, then they must be balanced, or it would no longer remain stationary. It is also possible that the object is already moving. In the forces are balanced on a moving object, the object would continue moving at the same speed and direction (velocity) that it already had.
The forces acting on an object that is moving are: Downforce, upthrust, gravity, air resistance and friction. The forces are not balanced, the reason for this is because if the forces were balanced, the object would not be moving. You need to have more Newtons of force in one direction than the other to make it go that way.
Yes, due to momentum. For example, an object traveling in space might have no forces acting on it but still be moving through space. However, the question might also be asked, how did this object start moving in the first place? If the object was created in a stationary state, then unbalanced forces would have to act upon it to get it moving. The object would have to have been created while moving in order…
If two forces acting on an object are equal and opposite, then the net force acting on the object is zero. If the net force acting on an object is zero, then the object's velocity will not change. If it is already moving, then it will continue to move in a straight line at that same velocity. If it is not already moving, it will stay stationary.
If you add up all the forces acting on an object, they are balanced if they equal zero. (They cancel each other out). If the forces acting on a object are balanced, then the acceleration of that object is zero. It may still be moving, but it is not accelerating. An object that is not accelerating, (the sum of the forces acting on it is zero), is in equilibrium.
If an object is not moving or if it is moving with a constant velocity (meaning there is no acceleration), the sum of the forces acting on it is equal to zero. A stationary object is said to be in static translational equilibrium, while an object with a constant velocity is said to be in dynamic translational equilibrium. Typically, an object at rest on the ground has two forces acting on it: Gravity and the…
Yes. The fact that the object is not moving does not mean that there is absolutely no force acting on it. It only means that: (A) there is no force acting on it or (B) there is no net force acting on it. Often a friction force counteracts whatever other forces are applied to an object, resulting in a net force of zero -- so the object remains motionless -- as long as those other…
When the entire group of forces acting on an object is balanced, the object's motion is 'uniform' ... its speed is constant and it moves in a straight line. If its speed is changing or its path is not straight, that's called "acceleration", and it means that the group of forces acting on the object is not balanced.
Not much, really. If the object's direction is changing, then the velocity changes, and there are forces acting on it. The only thing we can say is that the net force acting on the object is either zero, or it is perpendicular to the movement.If the VELOCITY doesn't change, then the net force (the sum of the forces) is zero.
Why an object moves with uniform speed even if the two forces acting on it in opposite directions are equal?
According to Newtons 1st law of motion, a body moving with constant velocity will move with it until an external force compelled it to change its velocity or which is also known as the Inertia of motion. As two equal and opposite forces acting on it , the net external force is zero, so it will move with constant velocity.