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Centripetal Force question 
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#1
Jun1209, 06:53 PM

P: 85

"A 0.400kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s.
What is the tension in the pendulum cable at this point of the pendulum is .8 meters long?" I would like to ask for some help on understanding centripetal force in this particular situation. I realize gravity is pulling down on the bob, while tension is counteracting gravity, and centripetal force is also counteracting gravity. I would like someone to explain to me why the sum of the forces here is the total centripetal force, or Tension minus force of gravity. 


#2
Jun1209, 07:03 PM

Mentor
P: 41,306




#3
Jun1209, 07:19 PM

P: 85

thank you very much, that's why i was so confused. Centripetal force is just another name for net force, but in angular motion!



#4
Jun1209, 07:22 PM

HW Helper
P: 2,155

Centripetal Force question



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