A record on a turntable starts from rest and begins rotating at an angular acceleration of...

Question

Question

A record on a turntable starts from rest and begins rotating at an angular acceleration of 0.3 rev/s for 2s. After 2s, it maintains its velocity and rotates at this constant angular speed. A) What is the angular speed of the record after the first 2s? B) What is the total angular displacement after 10s?

Answer 1

Answer #1

X = = 16884 6.3 revis » 3 der/s2 a » we wotat 1,884x2 => 3.768 gad) see 6 0 Let + wt 4 x 1-584x24)+ (3-768x®) 3 33.912 rad,

Answer 2

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