Recent content by Ikari

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    Intuition about simplifying this expression

    Homework Statement I was solving a problem and came to a part where I was dealing with the expression, 1 - e-t -------- 1 - et It turns out that this can be simplified to -e-t but I had no idea from simply looking at the first expression that it could be simplified, and I tried to continue...
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    High School Proof and challenge about projectile motion

    Hey guys, its me again! This time, I was reading about projectile motion in my textbook, and noticed that they didn't prove some of the claims presented about this topic. So I decided to try and prove it myself as a challenge. I included it here as a PDF. It's a pretty short and simple proof...
    • Ikari
    • Thread
    • Challenge Motion Projectile Projectile motion Proof
    • Replies: 3
    • Forum: Mechanics
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    High School Direction when the magnitude of the instantaneous velocity is 0

    Haha true enough! Thanks guys. I totally get it. Like I said, its been a while since I took a physics course!
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    High School Direction when the magnitude of the instantaneous velocity is 0

    Thanks for the help everyone! So from reading everyone's comments, I'm thinking that it works like this: No matter how close you get to the left of the point in time where the velocity becomes 0, the velocity vector points up. Then at this point, the direction changes to indefinite. Then...
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    High School Direction when the magnitude of the instantaneous velocity is 0

    Hi guys, sorry to ask such a basic question, but I'm studying for the MCAT and need to get my fundamentals down! Anyway, my question is this: Consider an object which has been thrown straight up into the air. It will rise, then at the very top of its ascent, it changes direction and comes...
    • Ikari
    • Thread
    • Direction Instantaneous velocity Magnitude Velocity
    • Replies: 16
    • Forum: Optics