Engineering Board Exam Reviewer · Engineering Mechanics · easy

A wheel starts with an angular velocity of 7 rad/s and has a constant angular acceleration of 4 rad/s2. What is its angular velocity after 5 seconds?

  1. 27
  2. 140
  3. 11
  4. 20

Answer

A. 27

Solution

= 0 + t = 7 + (4)(5) = 27 rad/s.

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