Solve the Problem $s = f ( t )$ Of a Body Moving Back and Forth on a Coordinate

question 303

Essay

Solve the problem.
-The graph below shows the position $s = f ( t )$ of a body moving back and forth on a coordinate line. (a) When is the body moving away from the origin? Toward the origin? At approximately what times is the (b) velocity equal to zero? (c) Acceleration equal to zero? (d) When is the acceleration positive? Negative?

8.5

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