# Physics

A bug is on the rim of a 78 rev/min, 12 in. diameter record. The record moves from rest to its final angular speed in 3.29 s.
Find the bug’s centripetal acceleration 1.5 s
after the bug starts from rest. (1 in = 2.54
cm).
Answer in units of m/s^2
.

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1. change rev/min to radians/second.
change 12in to meters

centripetal acc=angularspeed^2 * radius
where
angular speed=angularacceler*time

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bobpursley

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