Just need to make sure I know how to do this for a test. A freebody diagram woul

Question

Just need to make sure I know how to do this for a test. A freebody diagram would be greatly appreciated

1.     In a concrete mixer, cement, gravel, andwater are mixed in a slowly rotating drum. If the drum spins toofast, the ingredients stick to the wall instead of mixing. Assumethat the mixer has a radius R=2.0ft, and that its mounted with itsaxle horizontal. What is the fastest that the drum can rotatewithout the ingredients sticking to the drum wall all the time.Assume g=32ft/s2. (10 points).

8.0ft/s

Explanation / Answer

Centripetal force = weight mv^2 / r = mg From this v = [ rg ] = [ 2 * 32 ] = 8 ft / s

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