What are the main three cases of forces act on an object..?
Answers
Answer:
The main three cases of force act on an object are:-
➡ If the two forces applied to an object act in the same direction, then the resultant force acting on the object is equal to the sum of the two forces.
Example- Suppose there is a heavy box which one man can move only by pushing it very hard. Now, if two men push this heavy box in the same direction, it becomes much easier to move the heavy box. This is because when the two men applied their forces of push together in the same direction, the two forces at up to provide a much bigger force and this bigger force can move the heavy box very easily.
➡ If the two forces applied to an object act in the opposite directions, then the net force acting on the object is equal to the difference between the two forces.
Example- Suppose there is a heavy box lying on the ground.Let the two men push this box from opposites directions one from the left side and the other from right side. Assuming that one of the men is stronger of the two and applies a larger pushing force than the other man, we can say that the box will move in that direction in which a larger force is applied by the stronger man. The box will, however, move slowly in this case because the net force acting on the box in this case is equal to the difference in the magnitudes of the two forces applied by the two men. And this net force is small