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प्रश्न
An object of mass m has angular acceleration α = 0.2 rad s-2. What is the angular displacement covered by the object after 3 seconds? (Assume that the object started with angle zero with zero angular velocity).
बेरीज
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उत्तर
Given,
Angular acceleration = α = 0.2 rad s-2
Time = 3s
Initial velocity = 0
Solution:
θ = `ω_0t + 1/2αt^2`
θ = `1/2 xx 0.2 xx 3^2 = 0.9` rad (or) 51°54
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