Question

Define force?.
Define momentum?.​

Answer 1

Answer:

1. In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
2. In Newtonian mechanics, linear momentum, translational momentum, or simply momentum is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If m is an object's mass and v is its velocity, then the object's momentum is: \mathbf{p} = m \mathbf{v}.

Explanation:

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Answer 2

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✒ A force involves an interaction between two or more objects, and it causes a push or pull between the object.

It has a magnitude and a direction.

✒ The SI unit of force is Newton(N).

✒ In SI base units ↠ kg·m/s²

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➽ Formula for Force :-

F = m×a

Where,

• m ↠ mass of the body
• a ↠acceleration
• f ↠force

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Types of Force :-

Contact force

Forces that act on a body either directly or through a medium are called contact forces.

Examples :-

• Muscular Force
• Mechanical Force
• Frictional Force

Non−Contact force

Forces that act through spaces without making direct contact with the body are called non-contact forces.

Examples :-

• Gravitational Force
• Electrostatic Force
• Magnetic Force

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