Somebody shoots a ball.what represents the force of leg
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Ответ:
D. a N-2 force presses down on the cement block at the same time as a 1.5-N forces pressed up on the cement block
Explanation:
An unbalanced force is a force that changes the position, speed, or direction of the object to which it is applied. Unbalanced force accelerates the object with acceleration directly proportional to the size of the force and inversely proportional to the mass of the object. In a stable situation, all forces are balanced with all objects at rest or moving in a particular direction at a fixed speed. If a force begins to increase or a new force is introduced, the situation may change depending on the force of the increase or the new force. If the rising force or new force is weak, a new balance of forces is established and nothing changes. If the rising or new force is too strong for the existing balance of forces, objects will accelerate, move, and change their position or velocity. The situation will continue to change until a new balance of forces is reached.
Based on this, we can conclude that an example of force imbalance is "an N-2 force presses the concrete block at the same time as a 1.5-N force pressed into the concrete block".