Coming up with a Newton's 2nd law tension problem

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SUMMARY

The discussion focuses on formulating a Newton's Second Law (N2L) tension problem involving a pulley system. The scenario describes an object on a cliff, with a person rappelling down to retrieve it, while neglecting friction and air resistance. Key variables to determine include the net force (Fnet), tension in the rope, and acceleration of both the object and the person. The use of free body diagrams is emphasized as a crucial step in solving the problem.

PREREQUISITES
  • Understanding of Newton's Second Law (N2L)
  • Familiarity with free body diagrams
  • Basic knowledge of tension in pulley systems
  • Concept of net force (Fnet) and its calculation
NEXT STEPS
  • Study how to draw and analyze free body diagrams in physics
  • Learn about the role of tension in pulley systems
  • Explore the calculation of net force in various scenarios
  • Investigate the effects of gravity on acceleration in free-fall problems
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and forces, as well as educators looking for practical examples of Newton's Second Law applications.

wooker
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Homework Statement


So I am coming up with a word problem dealing with N2L. It goes like this. I have an object on top of a cliff i want to get, so i attach a pulley to the edge of the cliff. Now i tie my self to the object and string it with the pulley. To get the object down I will rappel off the cliff(with one jump only) and use my mass to bring it down. There will be no friction or air resistance involved.

How would i set up a problem to acquire variables like Fnet on the system, tension in the rope, or acceleration of the object or me? ( pick the easiest one to do)

Homework Equations



Fnet=ma

The Attempt at a Solution

 
Physics news on Phys.org
Hi Wooker,

Well you've got the equation right.. have you drawn free body diagrams? Using tension from the rope is as necessary as using the acceleration due to gravity.
 

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