what is force explain in long
Answers
Answer:force is the push or pull on an object with mass that causes it to change velocity (to accelerate). Force represents as a vector, which means it has both magnitude and direction.
Explanation:
In equations and diagrams, a force is usually denoted by the symbol F. An example is an equation from Newton's second law:
F = m·a
where F = force, m = mass, and a = acceleration.
The SI unit of force is the Newton (N). Other units of force include the dyne, kilogram-force (kilopond), poundal, and pound-force.
Examples of Forces
In nature, the fundamental forces are gravity, the weak nuclear force, the strong nuclear force, electromagnetic force, and residual force. The strong force is what holds protons and neutrons together in the atomic nucleus. The electromagnetic force is responsible for the attraction of opposite electric charge, repulsion of like electric charges, and the pull of magnets.