Questions
A car wheel is rotated to uniform angular acceleration about its axis. Initially, its angular velocity is zero. It rotates through an angle 1 in the first 2 s. In the next 2 s, it rotates through an additional angle 2 , the ratio of is
detailed solution
Correct option is C
α= constant ∴ θ=12αt2∵ θ∝t2or θ2+θ1θ1=2+222=4 or θ2θ1=3Talk 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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