BuyFind

Single Variable Calculus: Concepts...

4th Edition
James Stewart
Publisher: Cengage Learning
ISBN: 9781337687805
BuyFind

Single Variable Calculus: Concepts...

4th Edition
James Stewart
Publisher: Cengage Learning
ISBN: 9781337687805

Solutions

Chapter 2.7, Problem 43E
To determine

To identify: Each curves on the given graph and give proper explanation.

Expert Solution

Answer to Problem 43E

The curve c is position curve, b is velocity curve and a is acceleration curve.

Explanation of Solution

Graph:

The given graph is shown as in Figure 1,

Single Variable Calculus: Concepts and Contexts, Enhanced Edition, Chapter 2.7, Problem 43E

Observation:

Observe the graph of b and a carefully.

The point where a(t)=0 is the same point where graph of b(t) has horizontal tangent.

Recall that the derivative of a function is zero where the function has a horizontal tangent.

Therefore, a(t) is the derivative of the graph b(t). That is, b(t)=a(t).

Observe the graph of a and c carefully.

The graph of a has both positive and negative values. Hence a can be either velocity or acceleration.

The points where the graph of a has horizontal tangent, the functional value of c is not zero at that point.

This implies that, a(t)c(t).

The only possibility is that a is the acceleration curve. This implies that c(t)=a(t).

So, c=b=a.

Thus, c is position curve, b is velocity curve and a is acceleration curve.

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