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
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?