Recent content by ulfy01

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    Swimmer's velocity relative to the shore (vectors)

    I just realized this and made a fool of myself, really. Way to overthink a problem and not read it properly. I'll go hide in a corner now. Thanks azizlwl!
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    Swimmer's velocity relative to the shore (vectors)

    Homework Statement A swimmer is training in a river. The current flows at 1.33 metres per second and the swimmer's speed is 2.86 metres per second relative to the water. What is the swimmer's speed relative to the shore when swimming upstream? What about downstream? Homework Equations...
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    Initial velocity of projectile given angle and max height

    You're a life savior. It's this vo sinθ= voy that I wasn't able to get to. I got the answer right. Thank you so much!
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    Initial velocity of projectile given angle and max height

    Homework Statement A projectile was fired across level ground at an initial angle of 43.00 degrees above the horizontal. During its flight, it reached a maximum height of 2974 metres. What was the initial speed of this projectile? Homework Equations I assume that the correct equation...
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    Dimensional analysis - working out if this is dimensionally correct

    Ah, I think I got it! I have to get that dimensions are just that, dimensions. So in truth, a(x - x0) is really just L/T²(L) which is L²/T² I think that's the right conclusion and makes the expression correct. Thanks!
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    Dimensional analysis - working out if this is dimensionally correct

    Homework Statement I'm trying to work out if the following is dimensionally correct. I think I'm getting stuck at the (x - x0) Homework Equations In this case v is velocity (L/T), a is acceleration (L/T²), and x represents displacement, which is a length (L) The Attempt at a...