The ball has a weight of 15 lb and is fixed to a rod having a negligible mass. If it is released from rest when theta = 0 deg., determine the angle theta at which the compressive force in the rod becomes zero (see attachment for an illustration)
answer should be 48.2 deg. Not sure how to get there though.© BrainMass Inc. brainmass.com December 19, 2018, 8:17 pm ad1c9bdddf
Hello and thank you for posting your question to Brainmass!
The solution is attached ...
The two-pages solution shows step by step how to utilize conservation of energy to obtain the critical angle.