A velocity vs. time graph for an object is shown. Which parts of the graph represents the object moving
at a constant, positive acceleration?
Velocity vs Time
O W and X
25
20
Y
O X and Y
O Y and Z
O W and Z
Х
15
Velocity (m/s)
10
Z
w
5
0
0
1
2
4
5
3
Time (s)

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.