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In general physics, delta-''v'' is simply a change in velocity. The Greek uppercase letter delta is the standard mathematical symbol to represent change in some quantity. Depending on the situation, delta-''v'' can be either a spatial vector (Δv) or scalar (Δ''v''). In either case it is equal to the acceleration (vector or scalar) integrated over time: : (vector version) : (scalar version) where: *v0 or ''v''0 is initial velocity (at time ''t''0), *v1 or ''v''1 is subsequent velocity (at time ''t''1). Change in velocity is useful in many cases, such as determining the change in momentum, where :, where , is momentum and m is mass. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Delta-v (physics)」の詳細全文を読む スポンサード リンク
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