Answer to Question #269935 in Physics for Rusy

Question #269935

A wheel rotatung at 1p.5rads-1 takes 5.2 to stop calculate

Angular acceleration

The number if revolution the wheel makes before it stops

Expert's answer

The angular acceleration:

"\\alpha=\\omega\/t=1.5\/5.2=0.29\\text{ rad\/s}^2."

The number of revolutions:

"\\phi=\\alpha t^2\/2=3.92\\text{ rad}."

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