IB Physics Inclined Plane

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. A package slides down a 135 m long ramp with no friction. If the package starts from rest at the top and is to have a speed no faster than 19m/s at the bottom, what should be the maximum angle of inclination?

Oct 15th, 2015

Thank you for the opportunity to help you with your question!

(1/2) M Vmax^2 = M*g*135 sinA 

M cancels out. 

sinA = (1/2)Vmax^2/(g*135) 
= 0.1364 
A = 7.84 degrees 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 15th, 2015

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