3 years ago

Describe the forces involved in Throwing a spear

1 answer:

8 0

Explanation:

The center of gravity is near the grip and does not change during throw. "Throwing through the tip," a popular term of how to throw a javelin, means throwing through the grip or center of gravity. The center of pressure is the aerodynamic force of drag and lift on the javelin.

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A rope of total mass m hnd length L is suspended vertically with an object of mass M suspended from the lower end. Find an expre

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Answer:

Part a)

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Part b)

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Explanation:

Part a)

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$T = \frac{m}{L}xg + Mg$

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$v = \sqrt{\frac{T}{\mu}}$

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now we have

$v = \sqrt{\frac{ \frac{m}{L}xg + Mg}{m/L}$

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Part b)

time taken by the wave to reach the top is given as

$t = \int \frac{dx}{\sqrt{xg + \frac{MLg}{m}}}$

$t = \frac{1}{g}(2\sqrt{xg + \frac{MLg}{m}})$

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