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KINE 4640 Study Guide - Midterm Guide: Stroke Volume, Cori Cycle, Fartlek

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School
Auburn University
Department
Kinesiology
Course
KINE 4640
Professor
Giordano

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Document Summary

What will get you from point a to point b the fastest. Measured utilizing velocity and acceleration: physiology and adaptations. Lactate threshold (linked to fatigue not muscle soreness: vo2max, mitochondrial concentration, muscle fiber typing, biomechanics, efficiency and power (how quickly you can perform work) Derivative of position = velocity & derivative of velocity = acceleration. After taking a derivative always add 1 to the value. Take slope of graph at one point and then what that slope is will be the point on the next graph. Velocity of object at position 0sec is 1 so the velocity graph at 0sec = 1 and the acceleration of the object at velocity 0sec is -3 so the acceleration graph at 0sec = -3. When in negative time the velocity is positive so the points will be positive in negative time. When in positive time the velocity is negative so the points will be negative in positive time.

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Related Questions

Galileo thought about whether acceleration should be defined as the rate of change of velocity over time or as the rate of change in velocity over distance. He chose the former, so let’s use the name “vroomosity” for the rate of change of velocity over distance. For the motion of a particle on a straight line with constant acceleration, the equation v = vi + at gives its velocity v as a function of time. Similarly, for a particle’s linear motion with constant vroomosity k, the equation v = vi + kx gives the velocity as a function of the position x if the particle’s speed is vi at x = 0. (a) Find the law describing the total force acting on this object of mass m. Describe an example of such a motion or explain why it is unrealistic for (b) the possibility of k positive and (c) the possibility of k negative.

3. (15 pts) (I) The graph of the functions (t) = is given below. s=s(t) (a) In the figure above draw a secant line joining the points (o, s (0)) and (2, s (2)). (b) Find the slope, msec, of this secant line. (c) Draw a tangent line to the curve s = s(t) at the point where t = 2. (d) Is the slope of this tangent line, mtan, positive or negative ? 12 (II) Suppose s (t) = is the position of an object moving along a line t + 1 at time t 20. (a) How is the average velocity, Vav, between the times t = 0 and t = 2 related to the slope msec from the part (I b)? at t = 2 (b) Is the instantaneous velocity, Vinst positive or negative? Explain.

3. (15 pts) (I) The graph of the functions (t) =- - t +1 is given below. s=s(t) (a) In the figure above draw a secant line joining the points (o, s (0)) and (2, s (2)). (b) Find the slope, msec, of this secant line. (c) Draw a tangent line to the curve s = s(t) at the point where t = 2. (d) Is the slope of this tangent line, mtan, positive or negative ? 12 - is the position of an object moving along a line (II) Suppose s (t) = — at time to. (a) How is the average velocity, Vav, between the times t = 0 and t = 2 related to the slope msec from the part (I b)? (b) Is the instantaneous velocity, Vinst, at t = 2 positive or negative? Explain.