Find Initial Velocity of Ball with Time: 3.37

AI Thread Summary
To find the initial velocity of a ball using the time of 3.37 seconds, the formula dy = 1/2(a)(t)^2 is not directly applicable without knowing the acceleration. The discussion highlights the need for clarity on the question being asked, as the context of motion (upward or downward) affects the calculations. The calculated velocity of 33.026 m/s is questioned, indicating potential confusion about the correct approach. Understanding the relationship between time, acceleration, and initial velocity is crucial for accurate results. Clearer parameters of the problem would lead to a more precise calculation.
jubbly
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Hey guys, I was wondering how to find the initial velocity of a ball going up with only the time.

The time I have is 3.37, would I use the formula: dy=1/2(a)(t)^2
to find the initial velocity?

I got 33.026 m/s but I don't think that's right.
 
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What is the actual question? It would provide for a clearer understanding.
 
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 .
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