Posted by Twilight lover on Tuesday, April 28, 2009 at 3:42pm.
Can the size of an object's displacement be greater than the distance the object travels?
Describe the motion represented by a horizontal line on a distancetime graph.
Explain whether, during a trip, a car's instantaneous speed can ever be greater than its average speed.
You are walking toward the back of a bus that is moving forward with a constant velocity. Describe your motion relative to the bus and relative to a point on the ground.
A car travels at an average speed of 30 m/s for .8 h. Find the total distance traveled in km.

Science  RickP, Friday, May 1, 2009 at 12:17am
For (1), consider this as a starter. A car travels due east for 30 miles, then turns due north and travels for another 40 miles. What is the distance? What is the displacement?
I won't say which one, but the distance and displacement form a right triangle: one of them makes up the two "legs" and the other the hypotenuse.
See how far that gets you.
For (3), consider these values. The car starts off at 0 mph, accelerates up to 65 mph and travels that speed for an hour, then comes to a town and must slow down to 25 mph for 10 minutes, then it comes to a stop. Without doing math, you should be able to tell is the maximum speed traveled at any instance could be greater than the average speed for the trip.

Science  Carla turiano, Wednesday, October 8, 2014 at 7:58am
Stshbrayonb
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