Recent content by GarrettB

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    Simple Harmonic Oscillation Problem

    Of course you can, because its a cycle. Appreciate the insight.
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    Simple Harmonic Oscillation Problem

    Nothing happens if you change it by 2Pi? Since that's one full cycle. But this is 1pi?
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    Simple Harmonic Oscillation Problem

    Homework Statement The velocity of an object in simple harmonic motion is given by v(t)= -(4.04m/s)sin(21.0t + 1.00π), where t is in seconds. What is the first time after t=0.00 s at which the velocity is -0.149m/s? Homework Equations N/A The Attempt at a Solution I thought this was...
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    Momentum Question Involving Elastic Collision

    Oh wow. Thank you so much
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    Momentum Question Involving Elastic Collision

    I've tried doing that and it doesn't work. I choose the rectangle in the middle of the graph (t=19.1/3) and then evaluate for 3.89 N*s= 6.37msec* Fmax; Fmax=611N. And that's not correct
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    Momentum Question Involving Elastic Collision

    Unfortunately not. I don't know how knowing the area under there can help me find Fmax. If I could break up the the graph into geometric shapes then I would have a better idea how to find Fmax. Is there some equation I'm missing?
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    Momentum Question Involving Elastic Collision

    Yes, exactly its a force vs time graph. http://i1329.photobucket.com/albums/w548/GarrettSPB/momentum_zps3611f797.png
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    Momentum Question Involving Elastic Collision

    http://s1329.photobucket.com/user/GarrettSPB/media/momentum_zps3611f797.png.html Can you see that?
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    Momentum Question Involving Elastic Collision

    Homework Statement A 67.6g tennis ball with an initial speed of 28.8m/s hits a wall and rebounds with the same speed. The figure below shows the force of the wall on the ball during the collision. What is the value of Fmax, the maximum value of the contact force during the collision, if the...
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    Undergrad Why Do We Derive Energy Functions to Find Force Components?

    A potential energy function for a two-dimensional force is of the form U = 3.21x3 y - 5.79x. Calculate the force that acts at the point (1.47m,1.42m). Enter the x-component first and then the y-component. -2.38×101 N -1.02×101 N I know in order to find the force components of this energy...
    • GarrettB
    • Thread
    • Derivation Energy Function
    • Replies: 3
    • Forum: Mechanics
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    Undergrad Understanding Work in Physics: Misconceptions and Correct Approaches

    Oh right, the force is always changing. Thanks for the insight!
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    Undergrad Understanding Work in Physics: Misconceptions and Correct Approaches

    Hi, So I was able to answer both of these questions eventually, but the second one gave me some trouble. At first, I tried finding the force that the spring would be applying at that stretched length (3.81cm), knowing that the force done by external agent must be equal and opposite. I then...