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Gnesinka [82]
3 years ago
10

What are non-contact forces please include example in your answer

Physics
2 answers:
Alina [70]3 years ago
4 0

Answer:

Gravitational force.  Magnetic force.  Electrostatics.  Nuclear force.

Explanation:

Apple falling from a tree

raindrops falling from the sky

Katen [24]3 years ago
4 0
The most familiar non-contact force is gravity, which confers weight. In contrast a contact force is a force applied to a body by another body that is in contact with it. All four known fundamental interactions are non-contact forces: Gravity, the force of attraction that exists among all bodies that have mass.
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Answer:

m = 44~Kg

Explanation:

<u>Net Force</u>

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The net force vector is the sum of the individual vector forces applied. The magnitude of the net force is related to the magnitude of the acceleration of the body as follows:

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Furthermore, the acceleration can be calculated if we know the kinematic behavior of the body:

\displaystyle a=\frac{v_f-v_o}{t}

Where vf, vo, and t are the final speed, initial speed, and time, respectively.

The box is pushed across the floor with a force of 25 N against a frictional force of 14 N.

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We also know the box is accelerated from rest (vo=0) to vf=4 m/s in t=16 seconds, thus:

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