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## Homework Statement

The problem includes some pictures, so I will post the link here: http://faculty.polytechnic.org/cfle...pdfs _Jan_2010/zq-Mult Choice Test 3 csb.pdf

It is question number 20

## Homework Equations

Ug=mgh

KE=(1/2)mv^2

## The Attempt at a Solution

Since the inclines are frictionless, the time depends on the mass, velocity, and distance travel. However, the mass is not given, so I don't know how to approach the problem. Can somebody please help me out with this?