Design a carnival ride on which standing passengers are pressed against the inside curved wall of a rotating vertical cylinder. It is to turn at most at 1/3 revolution per second. Assuming a minimum coefficient of friction of 0.70 between clothing and wall, what diameter should the ride have if we can safely make the floor drop away when it reaches running speed? WHAT IS THE DIAMETER BECAUSE I TYPED IN 3.19 AND IT SAID INCORRECT. PLEASE HELP ASAP.

Question

Design a carnival ride on which standing passengers are pressed against the inside curved wall of a rotating vertical cylinder. It is to turn at most at 1/3 revolution per second. Assuming a minimum coefficient of friction of 0.70 between clothing and wall, what diameter should the ride have if we can safely make the floor drop away when it reaches running speed? WHAT IS THE DIAMETER BECAUSE I TYPED IN 3.19 AND IT SAID INCORRECT.  PLEASE HELP ASAP.

Damon · Answer

Hey - You are supposed to follow what I did, not just type any old number I give you!!!!! I did r = 3.19 You can multiply by 2 to get the diameter but you better decide to understand what I did first.