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Acceleration & Circular Motion

Acceleration & Circular Motion. Centripetal Acceleration Tangential Acceleration. Centripetal acceleration a c. tangential acceleration is how fast the speed changes Centripetal acceleration is how fast the velocity changes because of its direction change. Centripetal acceleration a c.

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Acceleration & Circular Motion

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  1. Acceleration & Circular Motion • Centripetal Acceleration • Tangential Acceleration

  2. Centripetal acceleration ac • tangential acceleration is how fast the speed changes • Centripetal acceleration is how fast the velocity changes because of its direction change.

  3. Centripetal acceleration ac vf vf =vo +∆v vf = vo = v vo

  4. Centripetal acceleration ac vf vf =vo +∆v ∆v vf = vo = v vo vf

  5. Centripetal acceleration ac vf =vo +∆v vf vf = vo = v ∆v r s q q vo vf r

  6. Centripetal acceleration ac vf ∆v r s q q vo vf r

  7. Centripetal acceleration Inward

  8. Tangential Acceleration • tangential acceleration is how fast the speed changes • aT= change in speed (time taken)

  9. Fig. 4.18, p.94

  10. Fig. 4.19, p.95

  11. Fig. 4.19a, p.95

  12. Fig. 4.19b, p.95

  13. A car rounds a corner of radius 12.0 m at a speed of 6 m/s while also pressing on the gas. If the car’s speed is increasing at a rate of 4 m/s^2, what is the magnitude of the car’s total acceleration?

  14. While traveling due southward at a speed of 20 m/s a car’s acceleration is 6.0 m/s^2 directed 60 degrees North of East. • A) what is the radius of the car’s path? • B) is the car speeding up or slowing down?

  15. Betty Pete Sue VB/c=0 m/s VP/c=5 m/s conveyor Vc/g=10 m/s Vs/g=0 VP/g=? ground Fig. 4.21, p.96

  16. Betty Pete Sue VB/c=0 m/s VP/c=5 m/s conveyor Vc/g=10 m/s Vs/g=0 VP/g= VP/c+ Vc/g=15 m/s ground Fig. 4.21, p.96

  17. Betty Pete Sue VB/c=10 m/s VP/c=-5 m/s conveyor Vc/g=10 m/s Vs/g=0 VP/B=? ground Fig. 4.21, p.96

  18. Betty Pete Sue VB/c=0 m/s VP/c=5 m/s conveyor Vc/g=10 m/s Vs/g=-8 VP/S=? ground Fig. 4.21, p.96

  19. Betty Pete Sue VB/c=0 m/s VP/c=5 m/s conveyor Vc/g=10 m/s Vs/g=-8 VP/S= VP/c + Vc/g + Vg/S ground Fig. 4.21, p.96

  20. Fig. 4.22, p.97

  21. Fig. 4.22a, p.97

  22. Fig. 4.22b, p.97

  23. Fig. 4.23, p.97

  24. Fig. 4.24, p.98

  25. Fig. 4.25, p.99

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