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Circular Motion. Centripetal Force and Centripetal Acceleration. Velocity = distance / time. Speed = distance / time = 2(3.14)(10.6)/17.3s = 0.0085 m/s. Speed = distance / time = 2(3.14)(0.3095)/.285s = 6.82 m/s. Gas pedal, brake pedal, and steering wheel. A. v. a. v. Gravity. Tension.
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Circular Motion Centripetal Force and Centripetal Acceleration
Speed = distance / time = 2(3.14)(10.6)/17.3s = 0.0085 m/s Speed = distance / time = 2(3.14)(0.3095)/.285s = 6.82 m/s
A v a v
Gravity Tension Normal Gravity Friction Friction + Normal Friction Gravity + Normal Normal - Gravity Normal
Fgrav Fnorm Fnorm Fgrav Fnet = Fnorm - Fgrav Fnet = Fnorm + Fgrav
Up Down > < Bottom The seat pushes upward on you more than you are use to!!! FALSE
110 N 20N 2.5 N 20N 11.25 down 22.5 down 45 UP UP a = v2/R Fnet = ma 90 a = 32/0.8 Fnet = 2x11.25 a = v2/R Fnet = ma a = 32/0.8 Fnet = 3x11.25
19,400 N 5,000 N 3,000 N 5,000 N 16 down 28.8 UP 8,000 down UP 14,400 a = v2/R Fnet = ma a = v2/R Fnet = ma a = 242/20 Fnet = 500x28.8 a = 82/4 Fnet = 500x16
655 N 24,600 N 6,000 N 6,000 N 8.9 down 31 UP down 5,345 UP 18,600 a = v2/R a = v2/R Fnet = ma Fnet = ma a = 302/29 Fnet = 600 x 31 a = 142/22 Fnet = 600 x 8.9