F=MA 要加速,動力要大於阻力
P=FV 要保持加速,在力不變的情況下,功率就要不斷加大(F不變,V變大,P也要加大)
F=MA 要加速,動力要大於阻力
P=FV 要保持加速,在力不變的情況下,功率就要不斷加大(F不變,V變大,P也要加大)
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