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  • Calculate Initial Velocity of a Projectile: Physics Problem & Solution
    Here's how to solve this problem using physics:

    Understanding the Physics

    * Constant Acceleration: The arrow is subject to the constant acceleration due to gravity, which is approximately -9.8 m/s² (negative because it acts downwards).

    * Kinematic Equations: We can use the following kinematic equation to relate displacement, initial velocity, acceleration, and time:

    * Δy = v₀t + (1/2)at²

    Variables

    * Δy = 33.0 m (vertical displacement)

    * t = 2.0 s (time)

    * a = -9.8 m/s² (acceleration due to gravity)

    * v₀ = ? (initial velocity, what we want to find)

    Solving for Initial Velocity (v₀)

    1. Plug the values into the equation:

    33.0 m = v₀(2.0 s) + (1/2)(-9.8 m/s²)(2.0 s)²

    2. Simplify and solve for v₀:

    33.0 m = 2.0v₀ - 19.6 m

    52.6 m = 2.0v₀

    v₀ = 26.3 m/s

    Answer: The initial velocity of the arrow is 26.3 m/s.

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