Which of the following statement is correct regarding force?
I. If an unbalanced force is applied on the object, there will be a change either in its speed or in the direction of its motion.
II. To accelerate the motion of an object, a balanced force is required.
Show answer & explanation
Correct answer: A
Explanation
In physics, a force can cause a change in an object's motion or direction. When an unbalanced force is applied to an object, a change occurs in its speed or direction. Therefore, the first statement is correct. On the other hand, to accelerate an object's motion, an unbalanced force—rather than a balanced force—is required. A balanced force does not alter an object's motion. Therefore, the second statement is incorrect. Thus, the correct answer is only I.