3 years ago

State two condition necessary for a solid to float in a liquid

Physics

1 answer:

hoa [83]3 years ago

4 0

Answer:

it's density must be less than water

law of floatation

wt of the immerged body = wt of the water displaced by it

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Let us denote the time spent after the second stone is thrown as 'T'.

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Second stone:

$y - y_0 = v_{y_0}T + \frac{1}{2}aT^2\\0 - h = v_{y_0}T -\frac{1}{2}gT^2\\-h = v_{y_0}(\sqrt{\frac{2h}{g}} - t) - \frac{g}{2}(\sqrt{\frac{2h}{g}} - t)^2\\-h = v_{y_0}(\sqrt{\frac{2h}{g}} - t) - \frac{g}{2}(\frac{2h}{g} + t^2 - 2t\sqrt{\frac{2h}{g}})\\-h = v_{y_0}\sqrt{\frac{2h}{g}} - v_{y_0}t - h -\frac{g}{2}t^2 + gt\sqrt{\frac{2h}{g}}\\v_{y_0}(\sqrt{\frac{2h}{g}} - t) = \frac{g}{2}t^2 - gt\sqrt{\frac{2h}{g}}\\v_{y_0} = \frac{\frac{g}{2}t(t - 2\sqrt{\frac{2h}{g}})}{\sqrt{\frac{2h}{g}} - t}$

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3 years ago

Read 2 more answers

3. A motorbike travels 45 miles in 15 minutes, what is its speed?

antiseptic1488 [7]

Hes going 180 mph
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