How Do You Calculate Tension in a Cable and Determine Mass with Given Variables?

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    Cable Tension
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Homework Help Overview

The discussion revolves around calculating tension in a cable and determining mass using given variables related to motion, specifically in the context of an elevator and a parachutist. The subject area includes dynamics and kinematics, with references to Newton's laws of motion.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants inquire about formulas to calculate tension and mass based on provided variables such as mass, acceleration, initial speed, air resistance, and time. There are attempts to clarify the problems presented and the necessary equations to use.

Discussion Status

Some participants have suggested looking up Newton's laws and have indicated that the problems could be approached using kinematic equations. There is an acknowledgment of the simplicity of the first part of the problem, while the second part appears to involve more complexity.

Contextual Notes

Participants have noted the need for more information and clarity in presenting the problems, as well as the importance of understanding the underlying principles of motion and forces involved.

AFG34
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1.the mass and acceleration is given and asks for tension in cable. What is a formula i could use.
2.in another question initial speed, air resistance, time and speed is given, what is a formula i could use for this question to solve for mass.
 
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1. Look up Newton's laws of motion.

2. It would be great to present the whole problem.
 
1. An elevator of mass of 900 kg accelerates upwads at 3 m/s^2. What is the tension in the cable where it is attatched to the elevator?

2. A parachutist jumps out of an airplane at an initial speed of 2m/s down. There is a force of air resistance equivalent to 305 N. Determine the mass of the parachutist if it takes 3 seconds to travel 30 m down.

So his speed is 10 m/s. And i dnt know anything else:frown:
 
As mentioned above, look up Newton's second law of motion. Part 1 is very simple. Part 2 includes a kinematical equation, i.e. the equation of displacement, from which you will obtain the acceleration.
 
ok, thank you , appreciate it
 

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