Math Problem Statement
- A rock is thrown at a window that is located 18.0 m above the ground. The rock is thrown at an angle of 40.0° above horizontal. The rock is thrown from a height of 2.00 m above the ground with a speed of 30.0 m/s and experiences no appreciable air resistance. If the rock strikes the window on its upward trajectory, from what horizontal distance from the window was it released?
Solution
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Math Problem Analysis
Mathematical Concepts
Projectile Motion
Kinematics
Quadratic Equations
Trigonometry
Formulas
Horizontal distance: x = v_{0x} * t
Vertical motion: y_f = y_0 + v_{0y} * t - (1/2) * g * t^2
Velocity components: v_{0x} = v_0 * cos(θ), v_{0y} = v_0 * sin(θ)
Quadratic formula: t = [-b ± sqrt(b^2 - 4ac)] / 2a
Theorems
Projectile Motion Equations
Suitable Grade Level
Grades 11-12
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