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Svet_ta [14]
3 years ago
15

A boy drags a suitcase along the ground with a force of 100 N. If the frictional force opposing the motion of the suitcase is 50

N, what is the resultant forward force on the suitcase?
Physics
1 answer:
stira [4]3 years ago
4 0
Fortunately, 'force' is a vector.  So if you know the strength and direction
of each force, you can easily addum up and find the 'resultant' (net) force.

When we talk in vectors, one newton forward is the negative of
one newton backward.   Hold that thought, while I slog through
the complete solution of the problem.


            (100 N forward) plus (50 N backward)

        =  (100 N forward) minus (50 N forward)

        =           50 N forward .

That's it.
Is there any part of the solution that's not clear ?

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3 years ago
An average human weighs about 600 N
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Answer:

The distance between them, x = 5809.47 m

Explanation:

Given,

The average weight of a human, w = 600 N

The charge carried by the humans, q = 1.5 C

If 600 N of force acts between two opposite charges, the distance between the charges can be derived from the Coulomb's laws of force,

                          <em>F=\frac{1}{4\pi\epsilon_{0}}\frac{qq}{x^{2}}</em>

Where,

                         \frac{1}{4\pi\epsilon_{0}} = 9 x 10⁹ N m² C⁻²

Therefore

                          x² = 9 x 10⁹ X 1.5² / 600

                              = 33750000

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3 years ago
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Answer:

F = 2.69 10⁻³ m   [ N]

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This force is directed from the Moon towards the Earth, therefore it reduces the weight of the body

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