This is probably a really stupid question but I just can't figure it out. In the Chapter 4 practice passage, question 4 asks "How much torque must the mechanical arm provide in order to prevent the passengers from swinging down?"
I thought it would be (600)(10)(5). but the answer key says (600)(10)(20). How is the radius 20??? I don't understand that part at all.
Thanks.
I thought it would be (600)(10)(5). but the answer key says (600)(10)(20). How is the radius 20??? I don't understand that part at all.
Thanks.