PHYSICS 135 Chapter Notes - Chapter 9: Parallel Axis Theorem, Rotational Energy, Milliradian
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Execute: r = s rad 180 s (a) r. 6. 27 cm rad /180 ) (128 )( (1. 50 m)(0. 700 rad) 1. 05 m s (c) Evaluate: an angle is the ratio of two lengths and is dimensionless. /s r = is used to calculate , the calculation gives in radians. t. , since the angular velocity is constant. (1900)(2 rad / 60 s) 199 rad/s (a) t . In we must use the same angular measure (radians, degrees or revolutions) for both. Writing eq. (2. 16) in terms of angular quantities gives t z. 1 dt d z dt and t z n n n. 1 nt t dt n d t dt (a) a must have units of rad/s and b must have units of. 2 t z = . (ii) for t. A bt dt a t t = , 3 z are positive and the angular speed is increasing. rad/s . 1 (2. 75 rad/s)(2. 00 s) z and zd d t.
