What is the displacement of the wrench?

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SUMMARY

The displacement of a wrench dropped from a height can be calculated using the kinematic equations of motion. Given that the acceleration due to gravity (g) is 9.8 m/s², after 7 seconds, the displacement can be determined using the formula: displacement = (1/2) * g * t². Substituting the values, the displacement after 7 seconds is 240.1 meters downward. Understanding the role of g as a constant acceleration during free fall is crucial for solving such problems.

PREREQUISITES
  • Understanding of kinematic equations of motion
  • Basic knowledge of physics concepts such as acceleration and displacement
  • Familiarity with the concept of gravitational acceleration (g)
  • Ability to perform basic algebraic calculations
NEXT STEPS
  • Review kinematic equations of motion for uniformly accelerated motion
  • Learn about free fall and the effects of gravity on falling objects
  • Explore real-world applications of gravitational acceleration in physics
  • Practice solving displacement problems involving different time intervals and initial velocities
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Students studying physics, educators teaching kinematics, and anyone interested in understanding the principles of motion under gravity.

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Homework Statement


a worker drops a wrench from top of building under construction. if g =9.8N/kg [down], after 7 seconds, what is the displacement of the wrench?


Homework Equations





The Attempt at a Solution



i don't know the formula, totally lost
 
Physics news on Phys.org
What is the physical interpretation of g? Does g ever change during the fall? After answering those questions, you should be able to see if any of your four kinematic equations can help you. Let us know if you need any more help.
 

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