Object slides down frictionless ramp. Find acceleration.

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Homework Help Overview

The discussion revolves around calculating the acceleration of an object sliding down a frictionless ramp, with specific dimensions provided: a height of 6.5 cm and a length of 130 cm. The context is rooted in kinematics and involves the application of Newton's laws.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to determine the angle of the ramp using trigonometric functions and expresses confusion regarding the relevance of mass in the problem. Some participants suggest applying Newton's second law and question the necessity of mass in the calculations.

Discussion Status

The discussion is ongoing, with participants providing guidance on applying Newton's laws in the context of a frictionless scenario. There is a recognition of the original poster's concerns regarding mass and friction, but no consensus has been reached on the approach to take.

Contextual Notes

The problem is framed within elementary physics, and there is an emphasis on the absence of friction, which may influence the interpretation of the forces involved.

fergus123
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Homework Statement



Hello, this is my first post here.
I am trying to find acceleration for an object sliding down a ramp. I have the length + height of ramp.

Height: 6.5cm
Length: 130 cm

Homework Equations



I'm at loss here. Vectors are included and this is a kinematics question.

The Attempt at a Solution



Inverse Sin of 6.5/130 give me 2.9 degrees.
Cos(2.9) x 130 is 129.8cm for the horizontal component.
 

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Thanks, for the answer, but my question doesn't have mass or friction involved. In elementary level physics.
 
No friction, fine. But all objects have mass. Make use of the link for the no friction case. Maybe you won't need to know the mass.
 

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