Question

1. what is force ?
2. give example of two different types of forces .
3. what are the effect of force on object ?.
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Answer 1

Answer:

1..

In physics, a force is any interaction that, when unopposed, will change the motion of an object. ... Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newtons and represented by the symbol F.

SI unit: newton (N)

Other units: dyne, pound-force, poundal, kip, kilopond

In SI base units: kg·m/s2

2..

Basically, there are two types of forces, contact forces, and non-contact forces. Gravitational forces, electric forces, magnetic forces, nuclear forces, frictional forces are some examples of force.

...

Non-contact forces examples

Gravitational force.

Electromagnetic force.

Weak nuclear force.

Strong nuclear force.

3..

A force acting on an object causes the object to change its shape or size, to start moving, to stop moving, to accelerate or decelerate. When there's the interaction between two objects they exert a force on each other, these exerted forces are equal in size but opposite in direction.

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Answer 2

Answer:

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Explanation:

a force is any interaction that, when unopposed, will change the motion of an object. ... Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newtons and represented by the symbol F.

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Contact Forces - involve physical contact between objects. Examples: the force involved in kicking a ball, pulling a wagon, compressing a spring, etc.

Field forces - don't involve physical contact between objects. Examples: the gravitational force and the electromagnetic force.

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A force acting on an object causes the object to change its shape or size, to start moving, to stop moving, to accelerate or decelerate. When there's the interaction between two objects they exert a force on each other, these exerted forces are equal in size but opposite in direction.

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