Recent content by happyjoe

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    What is the formula for velocity in SHM using differentiation?

    Hey there, this should be a very simple problem, but again, I haven't had much guidance in finding formulas with differentiation. If anyone could help me with this i'd greatly appreciate it as it can help me to understand the others. Characteristics of SHM are displacement (x) and time (t)...
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    Solve Integration Problem: Charge Flowed After 5 Seconds

    Wow, I can't believe I made a mistake that simple, lol Thanks for your help! You really helped me out there!
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    Solve Integration Problem: Charge Flowed After 5 Seconds

    Hey everyone. This has been really bugging me for 4 hours now, and I cannot figure out where I am going wrong. If anyone can help me that would be greatly appreciated. The current flowing through a capacitor is: I = Ioe^-(kt) Io = 2 amps k = 0.2s T = time Find the charge flowed...
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    Solving a Puzzling Lift Problem: Net Upward Force on the Man

    Thanks for replying! :D Well he's accelerating (doesnt say how much), so he's definitely pulling the whole box up including himself. I just took into account that if he's pulling the cradle up then the floor is lifting him 650N, and the fact he's pulling the rope means a further 650 must...
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    Solving a Puzzling Lift Problem: Net Upward Force on the Man

    Homework Statement Hey everyone, this problem has been bugging me for days now, and no matter how many times I've attempted it, I feel like its going wrong. http://img258.echo.cx/img258/4409/lift3ad.png The buillder has a mass of 75kg and the cradle has a mass of 35kg. The builder...
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    Finding the incline of the slope

    Thanks for your help! :D I am not sure if I am doing it right still though as when I do the first equation of sincos = acceleration/gravity I get 0.255, and when I do the second equation that you gave me I get weight ^2 = 614,656kg, net force ^2 = 40,0000 + normal force^2 = 40000. The answer I...
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    Finding the incline of the slope

    Hey everyone, I'm new here, and just wanted to say hi first. Second, I was wondering if anyone would so kind as to help me with this problem. Homework Statement An 80kg skiier has a force of 200N exerted on him down the slope. Now I've already found the acceleration of 2.5m/s^2, however...
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