Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 44
.for sup-pose in one case the speed to be a and in another case 2cr,then, if in the first case the particle moved from A to B(Fig. 20), in the second case it would go twice as far, AB, in the same time, or thechange of direction in thesecond case is twice asgreat. But the quantityof motion, 2mcr,… … Fig. 20. F oc a. 34 SIMPLE TYPES OF MOTION. Collecting these results and denoting the central force by Fc, ma*F„ oc , or (25) F = kmt where the value of h still remains to he determined. The exact value of the acceleration in this type may be derived from a con-sideration of the rate atwhich the…
Physics
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