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6 Cards in this Set
- Front
- Back
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What are Kepler's 3 Laws |
Law of Orbits(Ellipses), Law of Areas, Law of Harmonies (T^2/R^3) |
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A 1.2 m long pendulum reaches a speed of 4.0 m/s at the bottom of its swing. What is the tension in the string at this position? |
69 N |
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A 1200 kg car rounds a flat circular section of road at 20 m/s as shown in the diagram. The coefficient of friction between the car tires and the road surface is 0.65. What minimum friction force is required for the car to follow this curve? |
5.6E3 N |
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An object travels with a constant speed in a circular path. The net force on the object is A. zero. B. towards the centre. C. away from the centre. D. tangent to the object's path. |
B. Towards the centre |
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A car moving in a circular path with a constant speed has A. no acceleration. B. outward acceleration. C. tangential acceleration. D. centripetal acceleration. |
D. Centripetal Acceleration |
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A 1.2 kg mass on the end of a string is rotated in a vertical circle of radius 0.85 m. If the speed of the mass at the top of the circle is 3.6 m/s, what is the tension in the string at this location? |
6.5 N |
