What is the Length of the Ski Slope?

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SUMMARY

The discussion focuses on calculating the length of a ski slope given a skier's initial speed of 3.12 m/s on a horizontal surface and a final speed of 17.89 m/s at the bottom of a 16° incline. The solution involves applying the principle of energy conservation to determine the height of the incline, which can then be used to find the length of the slope using trigonometric relationships. The discussion emphasizes the need for the skier's mass to calculate acceleration accurately, although it is not provided in the problem statement.

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  • Understanding of energy conservation principles in physics
  • Basic knowledge of trigonometry, specifically right-angled triangles
  • Familiarity with kinematic equations
  • Ability to manipulate equations involving angles and distances
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This discussion is beneficial for physics students, educators, and anyone interested in solving problems related to motion on inclined planes and energy conservation principles.

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Homework Statement



A skier is gliding along at 3.12 m/s on horizontal, frictionless snow. He suddenly starts down a 16° incline. His speed at the bottom is 17.89 m/s.
What is the length of the incline?


Homework Equations



Not sure how to start this and formula to be used.

The Attempt at a Solution

 
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mcryder16 said:

Homework Statement



A skier is gliding along at 3.12 m/s on horizontal, frictionless snow. He suddenly starts down a 16° incline. His speed at the bottom is 17.89 m/s.
What is the length of the incline?

Homework Equations



Not sure how to start this and formula to be used.

The Attempt at a Solution


See:
https://www.physicsforums.com/showpost.php?p=905663&postcount=2
 
Put the start of the ramp at a height z=h and the end of the ramp at z=0. Now you can use energy conservation to determine the height. Knowing the height and angle of a right-angled triangle allows you to calculate the distance.
 
Cyosis said:
Put the start of the ramp...

The OP needs to show some effort in order to help with solving.
 
I think the mass of the skier should be given to find the acceleration and solve.
 

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