Newton's 3rd law- inclined plane

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SUMMARY

This discussion focuses on calculating the time it takes for Package A, with a mass of 5.26 kg and a coefficient of friction of 0.22, to slide down an 18° inclined plane over a distance of 2.1 meters. The problem involves applying Newton's 3rd law and the principles of friction. The solution requires determining the net force acting on Package A and using kinematic equations to find the time taken to reach the bottom of the ramp.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of friction coefficients and their impact on motion
  • Familiarity with kinematic equations
  • Basic algebra for solving equations
NEXT STEPS
  • Calculate the net force acting on Package A using F_net = m*g*sin(θ) - μ*m*g*cos(θ)
  • Learn how to apply kinematic equations to find time, specifically using t = sqrt(2*s/a)
  • Explore the effects of different coefficients of friction on sliding motion
  • Investigate the dynamics of multiple objects on an inclined plane
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators looking for practical examples of Newton's laws in action.

mcryder16
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Homework Statement



Two packages at UPS start sliding down the 18° ramp. Package A has a mass of 5.26 kg and a coefficient of friction of 0.22. Package B has a mass of 11.67 kg and a coefficient of friction of 0.15. How long does it take package A to reach the bottom? (s=2.1 m)

Homework Equations



Any ideas of how to start this problem?

The Attempt at a Solution

 
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How would you think to start the problem?
 

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