091610physhw

091610physhw - (2) 10. m/s 8. Which statement best...

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David Kim Physics Period 9 9/16/10 5. A car is traveling at 60 kilometers per hour. Determine the time required for the car to travel 12 kilometers. V = D/T 60 km/hour = 12km / X X= .2 hours or 12 minutes 6. The graph below shows the relationship between the position of an object moving in a straight line and elapsed time. What is the speed of the object during the time interval t = 2.0 seconds to t = 4.0 seconds? (1) 0.0 m/s 7. A particle is accelerated uniformly from the rest to a speed of 50. meters per second in 5.0 seconds. The average speed of the particle during this 5.0-second time interval is
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Unformatted text preview: (2) 10. m/s 8. Which statement best describes the movement of an object with zero acceleration? (3) The object may be in motion. 9. A particle has a constant acceleration of 2.0 meters per second 2 . Determine the time required for the particle to accelerate from 8.0 meters per second to 28 meters per second. A = v/t 2.0 m/s 2 = (28m/s 8.0 m/s)/X 2.0 m/s 2 = 20 m/s/X X = 10. seconds 10. If an object is traveling east with a decreasing speed, the direction of the objects acceleration (4) west...
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