A disk with 10 cm radius rolls without slipping down a 30°- inclined plane. At the instant shown, the angular velocity of the disk is w = 5rad/s, CW and its angular acceleration is a = 2 rad/s², CW. Its rightmost end is attached to rod AB (angled 45°) with the length of 24.56 cm. The other end of the rod is attached to collar B that is confined to move along the vertical. (A) Determine the angular acceleration of the rod, (B) Determine the velocity of the rod., (C) Determine the acceleration of collar B at this instant. - 5 rad/ a-2 rad/² r-10 cm 30° 45°

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Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.