The angular speed of a propeller on an airplane decreased at a rate of -2.67 rad

Question

The angular speed of a propeller on an airplane decreased at a rate of -2.67 rad/s2 for 12.0 s to obtain a final speed of 75 rad / s. What was the initial angular speed of the propeller? (a)170 rad/s (b) 107 rad/s (c) 43.0 rad/s (d) 188 rad/s 15.(a) For the previous problem, through what angle (in radians) did the propeller turn during the deceleration and (b) how many rotations is this (show your work)? 16. A big barrel full of monkeys rolls down a hill without slipping at 5.0 mph. If its radius is 100. cm then what is the linear speed at the top of the barrel and at the bottom of the barrel at the contact point with the ground (top; bottom)?

Explanation / Answer

14. Angular velocity, let

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