Physics

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A stone is thrown from ground level at 84 m/s. It's speed when it reaches it's highest point is 50 m/s. Find the angle, above the horizontal, of the stones initial velocity.

  • Physics -

    v(x) =v₀(x) = 50 m/s
    v₀=84 m/s
    cosα =v₀(x)/ v₀=50/84 =0.6
    α=53.5⁰

  • Physics -

    how did you get 53.5

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