Aforementioned Method - Physics - Solved Past Exam, Exams of Physics

Download Aforementioned Method - Physics - Solved Past Exam and more Exams Physics in PDF only on Docsity! PC1141 09/10 corrections January 8, 2013 1 Q4 Note: The aforementioned method of determining g will only work when L 6= 2d. For a system of physical pendulum (regardless of its uniformity), two points from the same side of the center of mass will share the same period. This is evident from the proving shown: T = 2π √ I mgh T 2 4π2 = Icm +mh 2 mgh (1) As shown, the equation is a quadratic one and thus, has 2 solutions for h. Therefore, in order to determine the value of g using the method as mentioned in the quesion, the boy should take caution as not to measure T from the point where the value of h is the same as that measured from the other side. 2 Q8(c)  = 0.206 and not 0.26 1