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Galina-37 [17]
3 years ago
11

2. A woman prevents a 3kg brick from falling by pressing it against a vertical wall. The coefficient of friction

Physics
1 answer:
Anettt [7]3 years ago
6 0
<h3>Answer:</h3>

49 N

<h3>Explanation:</h3>

<u>We are given;</u>

  • Mass of the brick as 3 kg
  • The coefficient of friction as 0.6

We are required to determine the force that must be applied by the woman so the brick does not fall.

  • We need to importantly note that;
  • For the brick not to fall the, the force due to gravity is equal to the friction force acting on the brick.
  • That is; Friction force = Mg

But; Friction force = μ F

Therefore;

μ F = mg

0.6 F = 3 × 9.8

0.6 F = 29.4

      F = 49 N

Therefore, she must use a force of 49 N

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Hey!

First, let's write the problem.
M+2-4=3
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M-2=3
Add 2 to both sides.
M-2+2=3+2

This tells us that our final answer would be,
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.Ryan boiled a liter of water and then stirred sugar into it, adding more sugar until no more would dissolve in the water, creat
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When Ryan added more sugar after reaching the saturation point of the mixture, the process of crystallization set in which surpassed the process of dissolution of the sugar solute leading to precipitation of the solute of out the solution.

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A solid iron ball of mass 770 kg is used on a building site. The ball is suspended by a rope from a crane. The distance from the
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A loudspeaker diaphragm is vibrating in simple harmonic motion with a frequency of 760 Hz and a maximum displacement of 0.85 mm.
Alchen [17]

Answer:(a) 4775.2Hz (b) 4.06m/s (c) 19382.15m/s²

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