• # question_answer A $\frac{1}{25}$ model of a ship it to be tested for estimating the wave drag. If the speed of the prototype is 1.0 m/s, then the speed at which the model must be tested is: A) 0.04 m/s                       B) 0.2 m/sC) 5.0 m/s             D) 25.0 m/s

$\frac{{{v}_{m}}}{{{v}_{p}}}=\sqrt{\frac{{{1}_{m}}}{{{1}_{p}}}},$ ${{v}_{m}}=1.0\,\sqrt{\frac{1}{25}}=0.2\,\text{m/s}$