Question

Q23. Define force? Write down the S.I unit & formula of force along with diagram of balanced
force.
(5)​

Answer 1

$\huge \underline{\red{ \mathbb{ FORCE}}}$

➠ A force is a push or pull upon an object resulting from its interaction with another object .

➠ in simple way we can say that any push or pull is termed as force .

➠ Force depends on mass of the object and the acceleration produced in the body.

➠ Force has both magnitude and direction therefore it is considered as a vector quantity.

⛥ S.I unit of Force.

➠ The S.I unit of force is Newton (N).

➠ 1 Newton = 1 kg × 1m/s².

➠ The force is said to be 1 Newton ( 1 N) . If a body of mass 1 kg and it produces an acceleration of 1m/s². Let's calculate it in a mathematical way .

➣ Mass of object = 1 kg

➣ Acceleration produced = 1 m/s².

◉ Force = mass × acceleration

➣ 1 kg × 1 m/s².

➣ 1 Newton.

Hence proved.

BALANCED FORCE,

➠ If the resultant of all the forces acting on the body is zero, The the force is said to be balanced force.

➠ Balanced force is always zero.

➠ These forces do not change the state of rest or motion of an object.

Answer 2

A force is a push or pull upon an object resulting from its interaction with another object .

SI unit of force is Newton.