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A 2 kg mass moving along a horizontal surface at 10 m/s is acted upon by a 5 N force of
friction. Calculate the net force?

A 2 kg mass moving along a horizontal surface at 10 ms is acted upon by a 5 N force of friction Calculate the net force class=

Respuesta :

Answer:

F = 20.61 N

Explanation:

Given that,

Mass of the object, m = 2 kg

It is moving with a speed of 10 m/s

It is acted upon by a 5 N of friction.

The force of gravity acts in downward direction which is given by :

W = mg

W = 2 × 10 = 20 N

5 N of force is acting in horizonal surface.

The net force is given by the resultant of two vectors as follows :

[tex]F=\sqrt{20^2+5^2} \\\\=20.61\ N[/tex]

So, the net force acting on the object is 20.61 N.

Lanuel

The net force acting on the mass is equal to 13.6 Newton.

Given the following data:

  • Mass = 2 kg
  • Speed = 10 m/s
  • Force of friction = 5 N

We know that the acceleration due to gravity (g) of an object on planet Earth is equal to 9.8 [tex]m/s^2[/tex].

To calculate the net force:

First of all, we would determine the normal force acting on the mass.

Mathematically, the normal force is given by the formula:

[tex]F_N = mg[/tex]

Where:

  • m is the mass of an object.
  • g is the acceleration due to gravity.

Substituting the given parameters into the formula, we have;

[tex]F_N = 2 \times 9.8[/tex]

Normal force = 19.6 Newton

To find net force:

[tex]Net\;force = 19.6 - 5[/tex]

Net force = 13.6 Newton.

Note: We subtracted because friction opposes the motion of an object and as such acts in opposite direction.

Read more: https://brainly.com/question/19046878

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