(a) What is the tangential acceleration of a bug on the rim of a 12.0-in.-diamet

Question

(a) What is the tangential acceleration of a bug on the rim of a 12.0-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 80.0 rev/min in 3.60 s? ______m/s2 (b) When the disk is at its final speed, what is the tangential velocity of the bug? ______m/s (c) One second after the bug starts from rest, what is its tangential acceleration? ______m/s2 (d) One second after the bug starts from rest, what is its centripetal acceleration? ______m/s2 (e) One second after the bug starts from rest, what is its total acceleration? ______m/s2 _______

Explanation / Answer

a)a = ?w/?t = 80.0 2p / 60 . 36 = 3.01 rad/s a = a . r = 3.01 . 0.3048 = 0.917 m/s/s b) v = w . r = 80 . 2p . 0.3048 / 60 = 2.55 m/s

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