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The speed of a shaft increases uniformly from 300rev per minute to 800 rev per minute in 10 seconds. Find the angular acceleration and convert to three significant figures?
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The speed of a shaft increases uniformly from 300rev per minute to 800...
Given data:
Initial speed of shaft (ω1) = 300 rev/min
Final speed of shaft (ω2) = 800 rev/min
Time taken (t) = 10 seconds

Angular acceleration (α):
The angular acceleration of the shaft can be calculated using the formula:
α = (ω2 - ω1) / t

Substitute the values:
α = (800 - 300) / 10
α = 500 / 10
α = 50 rev/min²

Conversion to three significant figures:
To convert the angular acceleration to three significant figures, we need to convert rev/min² to a more standard unit such as rad/s².
1 rev = 2π rad
1 min = 60 seconds
Therefore, 1 rev/min² = (2π/60) rad/s²
α = 50 * (2π/60)
α ≈ 5.24 rad/s²
Thus, the angular acceleration of the shaft is approximately 5.24 rad/s².
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The speed of a shaft increases uniformly from 300rev per minute to 800 rev per minute in 10 seconds. Find the angular acceleration and convert to three significant figures?
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