mi^ — ^ mvr cos^ a ,since u cos a is the velocity there (Art. 19).is the height of this point 1 rnu^ — J mil? cos^ a = mgh ;u^ sin^ a Ifh and h = 2? (6) If CA represent a simple pendulum which startsfrom the position CA, its energy in the positionCB, J mv^ , is equal to the work doue by theweight… … Fig. 24. ELEMENTARY MECHANICS. 19 CENTRE^ OF MASS. 52. If the masses of a number of particles be denoted byv\ , m^, . . . . and their distances from a plane by x^, rt-^, .. . .the distance x of their centre of mass, from the plane is __ m^x^ + y^2^2 + • • • • ■ ^ ~~ V7i, + m^-\- Two particles ?/i,…
Mechanics
Internet Archive · Western University Libraries · Public Domain Mark 1.0. Free to use for anything.
