What equations should I know about Classical Physics?

AI Thread Summary
To solve the problem of two objects thrown from an inclined surface, understanding the SUVAT equations is essential, particularly in the absence of air resistance. The first object, thrown parallel to the surface, maintains contact with it, following a straight line trajectory. The second object, thrown horizontally, will follow a different path influenced by gravity. A diagram would clarify the scenario, especially regarding the angles and distances involved. Overall, mastering these equations will enable solving for the distance where the two objects meet.
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Two object are thrown at the same time from a surface which has an angle of θ. The first pbject is thrown parallel with the surface, with the speed v1. The second object is thrown horizontally with the speed of v2. The objects hit each other at a certain point. What is the distance between the point they were thrown and hit each other? (The gravitational acceleration is g)

The question is translated. It may not be clear ask anything you didn't understand verbally.

The thing I want to know is, what equations should I know to solve this by myself?
 
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If you can ignore air resistance then the SUVAT equations here should be all you need..

http://en.wikipedia.org/wiki/Equations_of_motion

Is there a diagram to go with the question?

If you throw an object "from a surface" but also "paralel with the surface" it seems it must remain in contact with the surface. So it follows a straight line.
 
Yes, the first object keeps the contact with the ground
 

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