Cannot find the formula for tension

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SUMMARY

The discussion centers on calculating the mass of a penguin (m2) being pulled on frictionless ice, given the masses of three other penguins (m1 = 12 kg, m3 = 16 kg, m4 = 23 kg) and the tensions in two cords (T2 = 112 N, T4 = 212 N). The tension in a rope is defined as the force exerted by the rope, which can be calculated using Newton's second law, F = m*a. Participants also discuss the relationship between normal force and gravitational force when analyzing the forces acting on a bucket being raised.

PREREQUISITES
  • Understanding of Newton's second law (F = m*a)
  • Basic knowledge of forces, including tension and normal force
  • Familiarity with gravitational force calculations (m*G)
  • Concept of frictionless surfaces in physics
NEXT STEPS
  • Study the derivation of tension in different scenarios, such as pulleys and inclined planes
  • Learn how to apply Newton's laws to solve problems involving multiple objects and forces
  • Explore the concept of normal force in various contexts, including inclined surfaces
  • Investigate the effects of friction on tension and force calculations
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Students studying physics, particularly those focusing on mechanics and force analysis, as well as educators looking for examples of tension in real-world applications.

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Figure 5-48 shows four penguins that are being playfully pulled along very slippery (frictionless) ice by a curator. The masses of three penguins and the tension in two of the cords are m1 = 12 kg, m3 = 16 kg, m4 = 23 kg, T2 = 112 N, and T4 = 212 N. Find the penguin mass m2 that is not given.
Image :- http://edugen.wiley.com/edugen/courses/crs1650/art/qb/qu/c05/fig05_46.gif

I really cannot find the formula for tension at all and also i don't understand the tension concept at all. So please can somebody help me please.

Thanks
 
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Tension is just Force.

Use F = m*a
 


Hello everyone,

I'm having a doubt with my Physics homework. I need somebody's help!

To find the force exerted by the rope on a bucket of water that is raised from a well I have to find the normal force (m*A upward accelaration of the bucket) and that is the one or I should find the force of gravity (m*G) and substracted from the normal force and that is the force exerted by the rope?

Thankss
 

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