A stationary wheel starts rotating about its own axis at uniform angular acceleration 8rad/sec2 .The time taken by t to comlete 77 rotations is

A stationary wheel starts rotating about its own axis at uniform angul

1.	A stationary wheel starts rotating about its own axis at uniform angular acceleration 8rad/sec2 .The time taken by t to comlete 77 rotations is
Answer» Θ = (ωi × t) + 0.5αt² It was initially at rest. HENCE ωi = 0 θ = 0.5αt² t = √(2θ / α) = √(2 × (77 × 2 π rad) / 8 rad/s²) = 11 seconds ………[Here I took π = 22/7] Time taken to COMPLETE 77 REVOLUTIONS is 11 seconds [Note: We should multiply revolutions by 2 π to

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A stationary wheel starts rotating about its own axis at uniform angular acceleration 8rad/sec2 .The time taken by t to comlete 77 rotations is

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