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satela [25.4K]
3 years ago
12

Plz answer quick this is science

Physics
1 answer:
zheka24 [161]3 years ago
5 0
The answer is erosion
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(c) A moving train has a kinetic energy of 8.1 x 10(power of 6)J.
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the friction force provided by the brakes is 30000 N.

<h3>What is friction force?</h3>

Friction force is the force that opposes the motion between two bodies in contact.

To calculate the average friction force provided by the brakes, we apply the formula below.

Formula:

  • K.E = F'd............. Equation 1

Where:

  • K.E = Kinetic energy of the train
  • F' = Friction force provided by the brakes
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Make F' the subject of the equation

  • F' = K.E/d............ Equation 2

From the question,

Given:

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  • d = 270 m

Substitute these values into equation 2

  • F' = (8.1 ×10⁶)/270
  • F' = 30000 N

Hence, the friction force provided by the brakes is 30000 N

Learn more about friction force here: brainly.com/question/13680415

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I uploaded the answer to^{} a file hosting. Here's link:

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