what is force? Write its SI unit?
Answers
The SI unit of force is the Newton and symbol N. The basic units relevant to force are termed as metre, unit of length, symbol, and the Kilogram, and unit of mass.
A newton is the force required to calculate a mass of 1 kilogram and acceleration of 1 meter per second.
The measurements have been taken with metric or SI system in scientific work more than other units of force.
Force is that cause which either changes or tends to change the shape, size, dimensions, state of rest, state of motion etc. of an object over which it acts.The SI unit of force is newton, denoted by N . The forces are mainly divided on the basis of when it acts. The types of forces are given below : -
1. Contact Forces
The forces that are applicable only when the objects under consideration are in actual physical contact with each other are called contact forces. Examples: Frictional Force, Muscular Force, Force of Tension, etc.
2. Non-contact Forces
The forces that are applicable even if the objects under consideration are not in actual physical contact are named non-contact forces. Examples: Gravitational Force, Electrostatic Force, Magnetic Force, etc.
