The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 48
circle or curve line always the result ? Why ? 136.How many forces act upon a ball thrown in a horizontal direction ? What arethey ? 137 Why do bodies fall to the ground ? Why do some bodies ?o fartherthan others before they fall ? What does Fig. 12 represent ? Note.—Upon whatdoes the shape of the… … 38 NATURAL PHILOSOPHY. of the projected ball, 3 the horizontal line at the base of the tower.During the first second of time, the falling ball reaches 1, the nextsecond 2, and at the end of the third second it strikes the ground.Meantime, that projected from the cannon, moves forward withsuch…
Physics
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