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Arte-miy333 [17]
2 years ago
9

It takes 25N or force to drag a box along the floor at a constant speed. If the coefficient of friction is .3, what is the mass

of the box?
Physics
1 answer:
Nataliya [291]2 years ago
6 0

The mass of the box is 8.5 kg.

<h3>What is mass?</h3>

Mass can be defined as the quantity of matter contained in a body.

To calculate the mass of the box, we use the formula

Formula:

  • F = mgμ............. Equation 1

Where:

  • F = Force
  • m = mass of the box
  • g = acceleration due to gravity
  • μ = coefficient of friction

Make m the subject of the equation

  • m = F/gμ..................... Equation 2

From the question,

Given:

  • F = 25 N
  • g = 9.8 m/s²
  • μ = 0.3

Substitute these values into equation 2

  • m = 25/(0.3×9.8)
  • m = 25/2.94
  • m = 8.5 kg

Hence, the mass of the box is 8.5 kg.

Learn more about mass here: brainly.com/question/26150306

#SPJ1

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Explanation:

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An object with a mass of 20 kg has a net force of 80 N acting on it. What is the acceleration of the object?
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Answer:

4m/s^2

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A net force, the magnitude of which is 3800 N, accelerates a 1260-kg vehicle for 10.0 s. The vehicle travels 50.0 m during this
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p =  \frac{fd}{t}  \\ where \: \\p  = power \\  f = force \\ d = distance \\ and \: t = time \\  \\ p =  \frac{3800 \times 50}{10}  \\ p =  \frac{190000}{10}  \\ p = 19000w

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A hammer slides down a roof that makes a 30.0°angle with the horizontal. What are the magnitudes of the components of the hammer
dlinn [17]
<h2>Answer:7.14ms^{-1},4.125ms^{-1}</h2>

Explanation:

Whenever an object is moving in a 2D frame,its motion can be analysed as if it is travelling in two independent 1D frames.

One of such independent 1D frames are along horizontal and another along vertical.

Let v be the total velocity.

Given that,v=8.25ms^{-1}

We call the horizontal velocity as v_{h} and the vertical velocity as v_{v}.

v_{h}=vCos\alpha

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v_{v}=8.25\times Sin(30^{0})=4.125ms^{-1}

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