Questions
A circular disc is rotating about its own axis at a uniform angular velocity The disc is subjected to uniform angular retardation by which its angular velocity is decreased to during 120 rotations. The number of rotations further made by it before coming to rest is
detailed solution
Correct option is C
α is constant, α=ω12−ω222θ;θ2=θ13Talk to our academic expert!
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A stationary wheel starts rotating about its own axis at uniform angular acceleration 8rad/s2. The time taken by it to complete 77 rotations is
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