What is the initial speed of a juming flea?

AI Thread Summary
To determine the initial speed of a flea that jumps to a height of 0.520 meters, users are encouraged to show their calculations or attempts before receiving assistance. The discussion emphasizes the importance of posting in the appropriate homework forum for such queries. Participants engage in light banter, but the focus remains on the need for a clear problem-solving approach. The conversation highlights the collaborative nature of the forum while maintaining academic integrity. Overall, the initial speed can be calculated using physics principles related to gravitational potential energy and motion.
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I need some help with this problem if anybody can, please do, I need it!
If a flea can jump straight up to a height of 0.520m, what is its initial speed as it leaves the ground...
 
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Welcome to the Forums,

What have you attempted thus far? For future reference, we have homework forums for such questions.
 
This looks like a homework question. We cannot help with homework until you have posted you attempt. So, do you have any thoughts?

In future, please post in the homework forum!

Edit: EVERY time you beat me, Hoot!
 
cristo said:
Edit: EVERY time you beat me, Hoot!
:smile: You can have the rest of 'em tonight! I'm off to watch the West Wing :approve:
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
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