rotatory motion

Asked by  | 27th Jun, 2009, 07:22: PM

Expert Answer:

(i) theta = omega0 x t + (1/2) x alpha x t2

400 = 0 + (1/2) x alpha x 100

angular acceleration = alpha = 8 rad / s2

(ii) omega = omega0 + alpha x t

omega = 0 + 8 x 20 = 160 rad / s2

Answered by  | 7th Jul, 2009, 02:29: PM

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