CPM Homework Help : CALC Problem 3-16

Hint (a):

Notice that the velocity is negative when t > 4.5.

Answer (a):

When velocity is negative, Stevie moves back towards his starting position.

Hint (b):

Total distance is the area under a speed graph. Speed is the absolute value of velocity.

Hint (b):

A speed graph is the absolute value of a velocity graph...
Area under a speed graph = total distance.
Area under a velocity graph = displacement.

Hint (c):

Distance from starting point is known as 'displacement.'
Displacement is the area under a velocity graph.

Hint (d):

Acceleration is slope on a velocity graph.

Hint (e):

See hint in part (d).