What was the initial speed of the archer's arrow?

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SUMMARY

The discussion focuses on calculating the initial speed of an archer's arrow shot horizontally at a target 16 meters away, which impacts 57 centimeters lower than aimed. The key equations involve horizontal motion with constant velocity and vertical motion under gravity. By determining the time taken for the arrow to fall 57 centimeters, users can calculate the initial horizontal velocity using the formula: initial speed = distance/time.

PREREQUISITES
  • Understanding of projectile motion principles
  • Familiarity with kinematic equations
  • Basic knowledge of gravity's effect on falling objects
  • Ability to solve algebraic equations
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  • Calculate the time taken for the arrow to fall 57 centimeters using the equation for free fall.
  • Learn how to apply kinematic equations to solve for initial velocity in projectile motion.
  • Explore the effects of air resistance on projectile motion for more advanced scenarios.
  • Study the relationship between horizontal and vertical components of motion in physics.
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Students studying physics, educators teaching projectile motion, and anyone interested in the mechanics of archery and motion analysis.

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Homework Statement


An archer shoots an arrow horizontally at a target 16 meters away. The arrow is aimed directly at the center of the target, but it hits 57 centimeters lower.

What was the intitial speed of the arrow?


Homework Equations





The Attempt at a Solution

 
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Why the arrow hit the lower point?
Here horizontal velocity of the arrow remains constant. But the vertical velocity increases starting with zero.
Can you find the time t taken by arrow to fall 57 cm lower?
This is the time taken by the arrow to hit the target. Distance of the target is known. Time is known. Find the initial velocity.
 

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