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| 1. |
F = -25 u = -50m find v and m |
| Answer» 1/v + 1/u = 1/f1/v + 1/-50 = 1/-251/v - 1/50 = 1/-251/v = -1/25 + 1/501/v = -2+1/501/v = -1/50v = -50M = H2/H1 = -50/-50 = 1 | |