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How many revolutions does the object make during the first 4.0 s?

Roger Moore

in Physics

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1 answer

Ashley Howard on October 26, 2018

Radians/second * seconds = Radians BUT the angular velocity is not constant in this case we need to integrate ω over time. We know that this integral is the area under the curve in which we can find the use of the plot: 20rad/s*2s + (10+5) + 10*0.4 = 59 radians 59 radians * 1rev/2π radians = 59/2π = 9.4 revolutions

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