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#### Concept explainers

**CALC** A turtle crawls along a straight line, which we will call the *x*-axis with the positive direction to the right. The equation for the turtle’s position as a function of time is *x*(*t*) = 50.0 cm + (2.00 cm/s)*t* − (0.0625 cm/s^{2})*t*^{2}. (a) Find the turtle’s initial velocity, initial position, and initial acceleration. (b) At what time *t* is the velocity of the turtle zero? (c) How long after starting does it take the turtle to return to its starting point? (d) At what times *t* is the turtle a distance of 10.0 cm from its starting point? What is the velocity (magnitude and direction) of the turtle at each of those times? (e) Sketch graphs of *x* versus *t*, *υ _{x}* versus

*t*, and

*a*versus

_{x}*t*, for the lime interval

*t*= 0 to

*t*= 40 s.

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# Chapter 2 Solutions

University Physics with Modern Physics (14th Edition)

# Additional Science Textbook Solutions

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

College Physics

Tutorials in Introductory Physics

Essential University Physics: Volume 1 (3rd Edition)

The Cosmic Perspective

The Cosmic Perspective Fundamentals (2nd Edition)

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