How to Approach Projectile Motion on an Inclined Surface?

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SUMMARY

The discussion focuses on solving dynamics problems related to projectile motion on an inclined surface, specifically problems 11.9 and 11.15. The key insight is that the projectile's trajectory can be calculated as if the incline were not present, and the intersection point between the trajectory (a parabola) and the incline (a straight line) determines where the projectile will hit. This approach simplifies the analysis by allowing the use of standard projectile motion equations before considering the incline's effect.

PREREQUISITES
  • Understanding of basic projectile motion principles
  • Familiarity with kinematic equations
  • Knowledge of parabolas and their equations
  • Ability to solve systems of equations
NEXT STEPS
  • Study the derivation of projectile motion equations on flat surfaces
  • Learn how to find the intersection of a line and a parabola
  • Explore the concept of components of motion in inclined planes
  • Practice solving similar problems involving inclined surfaces and projectile motion
USEFUL FOR

Students studying physics, particularly those focusing on dynamics and projectile motion, as well as educators looking for effective teaching strategies for inclined motion problems.

Pepsi24chevy
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urgent help with 2 dynamics problems

Hey guys, here are some problems i need help with bad. For 11.9 I got no idea what i am doing here. Here is 11.9:
11.9

Here is 11.15. Here i know how to do a problem with basically a projectile shooting at an angle from the ground but not of one from an incline surface. How would i set this up different? I believe i got to do the acceleration and velocity of each components and then find t, and then i can find d, but that incline is throwing me off. ANy help is appreciated, thanks!
 
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Pepsi24chevy said:
Here i know how to do a problem with basically a projectile shooting at an angle from the ground but not of one from an incline surface. How would i set this up different?

Remember that the projectile doesn't care that the incline is there until it actually hits it. That means that you can find the trajectory of the particle in just the same was as you would if the incline wasn't there. Then to find where it hits you just need to find the point of intersection of a straight line and a parabola.

When you've posted some of your own thoughts on the other problem, then I will too. But not before. :wink:
 

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