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Naily [24]
3 years ago
14

Determine the kinetic energy of a 1000 kg roller coaster car that is moving with speed of 40.0 m/s​

Physics
1 answer:
ololo11 [35]3 years ago
8 0

Answer:

KE=800,000

Explanation:

The formula for kinetic energy is KE=1/2mv^2 or Kinetic Energy= 0.5*mass*velocity^2

so 1000 is the mass and 40 is the velocity

KE=0.5*1000*40^2

KE=0.5*1,000*1,600

KE=800,000 Joules

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To solve this problem, let us recall that the formula for gases assuming ideal behaviour is given as:

rms = sqrt (3 R T / M)

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or

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rms1 / rms2 = sqrt (T1 M2 / T2 M1)

Since T1 = 4 T2

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and M2 = 2 while M1 = 40

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rms1 / rms2 = 0.447

 

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<span>rms_Argon / rms_Hydrogen = 0.45</span>

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3 years ago
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