Distance and Displacement
What is the difference between distance and displacement?
Distance - complete length of a path taken, does not include direction
Displacement - the length of a straight line between two points, includes direction
Extra Practice Problem 2
average velocity = 3.1 m/min in the direction of the refrigerator
What is the definition of acceleration?
A measure of how velocity changes with time
Extra Practice Problem 1
distance = 130 feet, displacement = -30 feet
Extra Practice Problem 3
1.0 x 10^2 seconds
Extra Practice Problem 8
2.0-4.1 seconds and 14.0-16.3 seconds
Extra Practice Problem 5
16 m/sec
Extra Practice Problem 9
4.1-7.0 seconds and 16.3-16.7 seconds
Extra Practice Problem 7
-0.50 m/sec.
Extra Practice Problem 4
acceleration = -1 x 10^(-3) miles/sec^2
Extra Practice Problem 6
slowest at 2.0 seconds, 7.7 seconds, and from 13.2 - 15.9 seconds
Extra Practice Problem 10
1.0 m/sec^2