Modeling the Dynamics of Life: Calculus and Probability for Life Scientists
Modeling the Dynamics of Life: Calculus and Probability for Life Scientists
3rd Edition
ISBN: 9780840064189
Author: Frederick R. Adler
Publisher: Cengage Learning
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Chapter 2, Problem 32SP

(a)

To determine

To find: The derivative x(t).

(a)

Expert Solution
Check Mark

Answer to Problem 32SP

  v(t)=4π3.2sin(2πt3.2)

Explanation of Solution

Given information:

Consider the equation, x(t)=2.0cos(2πt3.2)

Calculation:

The position of the object attached to the spring is,

  x(t)=2.0cos(2πt3.2) ----- (1)

Differentiating x(t). with respect to t ,

  x(t)=2.0cos( 2πt 3.2)ddtx(t)=ddt{2.0cos( 2πt 3.2)}=2sin( 2πt 3.2)( 2π 3.2)v(t)=4π3.2sin( 2πt 3.2)(2)

The rate of change of position of object represents velocity v(t) .

(b)

To determine

To find: The second derivative x(t).

(b)

Expert Solution
Check Mark

Answer to Problem 32SP

  a(t)=4π3.2(2π3.2)cos(2πt3.2)

Explanation of Solution

Given information:

Consider the equation, x(t)=2.0cos(2πt3.2)

Calculation:

The position of the object attached to the spring is,

  x(t)=2.0cos(2πt3.2) ----- (1)

Differentiating x(t). with respect to t ,

  x(t)=2.0cos( 2πt 3.2)ddtx''(t)=ddtv'(t)=ddt{4π3.2sin( 2πt 3.2)}a(t)=4π3.2( 2π 3.2)cos( 2πt 3.2)(3)

The rate of change of velocity of object represents velocity a(t) .

(c)

To determine

To find: The position and velocity at t=0

(c)

Expert Solution
Check Mark

Answer to Problem 32SP

  x(0)=2;v(0)=0

Explanation of Solution

Given information:

Consider the equation, x(t)=2.0cos(2πt3.2)

Calculation:

The position of the object attached to the spring is,

  x(t)=2.0cos(2πt3.2) ----- (1)

  v(t)=4π3.2sin(2πt3.2)(2)

Substitute t=0 in equation (1) and (2),

  x(0)=2.0cos(2π03.2)=2

  v(0)=4π3.2sin(2π03.2)=0

Hence, x(0)=2;v(0)=0

(d)

To determine

To find: The position and velocity at t=1.6

(d)

Expert Solution
Check Mark

Answer to Problem 32SP

  x(1.6)=2;v(1.6)=0

Explanation of Solution

Given information:

Consider the equation, x(t)=2.0cos(2πt3.2)

Calculation:

The position of the object attached to the spring is,

  x(t)=2.0cos(2πt3.2) ----- (1)

  v(t)=4π3.2sin(2πt3.2)(2)

Substitute t=1.6 in equation (1) and (2),

  x(1.6)=2.0cos(2π(1.6)3.2)=2.0cos(π)=2

  v(1.6)=4π3.2sin(2π(1.6)3.2)=4π3.2sin(π)=0

Hence, x(1.6)=2;v(1.6)=0

(e)

To determine

To find: The position and velocity at t=3.2

(e)

Expert Solution
Check Mark

Answer to Problem 32SP

  x(3.2)=2;v(3.2)=0

Explanation of Solution

Given information:

Consider the equation, x(t)=2.0cos(2πt3.2)

Calculation:

The position of the object attached to the spring is,

  x(t)=2.0cos(2πt3.2) ----- (1)

  v(t)=4π3.2sin(2πt3.2)(2)

Substitute t=3.2 in equation (1) and (2),

  x(3.2)=2.0cos(2π(3.2)3.2)=2.0cos(2π)=2

  v(3.2)=4π3.2sin(2π(3.2)3.2)=4π3.2sin(2π)=0

Hence, x(3.2)=2;v(3.2)=0

(f)

To determine

To find: The differential equation does the object follows.

(f)

Expert Solution
Check Mark

Answer to Problem 32SP

  d2x(t)dt2=3.855x(t)

Explanation of Solution

Given information:

Consider the equation, x(t)=2.0cos(2πt3.2)

Calculation:

The position of the object attached to the spring is,

  x(t)=2.0cos(2πt3.2) ----- (1)

  a(t)=4π3.2(2π3.2)cos(2πt3.2) ---- (3)

  d2dt2x(t)=4π3.2( 2π 3.2)x(t)2from(1)d2x(t)dt2=4π3.2(π 3.2)x(t)

Thus the differential equation is d2x(t)dt2=3.855x(t)

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Chapter 2 Solutions

Modeling the Dynamics of Life: Calculus and Probability for Life Scientists

Ch. 2.1 - Prob. 11ECh. 2.1 - Prob. 12ECh. 2.1 - Prob. 13ECh. 2.1 - Prob. 14ECh. 2.1 - Prob. 15ECh. 2.1 - Prob. 16ECh. 2.1 - Prob. 17ECh. 2.1 - Prob. 18ECh. 2.1 - Prob. 19ECh. 2.1 - Prob. 20ECh. 2.1 - Prob. 21ECh. 2.1 - Prob. 22ECh. 2.1 - Prob. 23ECh. 2.1 - Prob. 24ECh. 2.1 - Prob. 25ECh. 2.1 - Prob. 26ECh. 2.1 - Prob. 27ECh. 2.1 - Prob. 28ECh. 2.1 - Prob. 29ECh. 2.1 - Prob. 30ECh. 2.1 - Prob. 31ECh. 2.1 - Prob. 32ECh. 2.1 - Prob. 33ECh. 2.1 - Prob. 34ECh. 2.1 - Prob. 35ECh. 2.1 - Prob. 36ECh. 2.1 - Prob. 37ECh. 2.1 - Prob. 38ECh. 2.1 - Prob. 39ECh. 2.1 - Prob. 40ECh. 2.1 - Prob. 41ECh. 2.1 - Prob. 42ECh. 2.1 - Prob. 43ECh. 2.1 - Prob. 44ECh. 2.1 - Prob. 45ECh. 2.1 - Prob. 46ECh. 2.2 - Prob. 1ECh. 2.2 - Prob. 2ECh. 2.2 - Prob. 3ECh. 2.2 - Prob. 4ECh. 2.2 - Prob. 5ECh. 2.2 - Prob. 6ECh. 2.2 - Prob. 7ECh. 2.2 - Prob. 8ECh. 2.2 - Prob. 9ECh. 2.2 - Prob. 10ECh. 2.2 - Prob. 11ECh. 2.2 - Prob. 12ECh. 2.2 - Prob. 13ECh. 2.2 - Prob. 14ECh. 2.2 - Prob. 15ECh. 2.2 - Prob. 16ECh. 2.2 - Prob. 17ECh. 2.2 - 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Prob. 16ECh. 2.8 - Prob. 17ECh. 2.8 - Prob. 18ECh. 2.8 - Prob. 19ECh. 2.8 - Prob. 20ECh. 2.8 - Prob. 21ECh. 2.8 - Prob. 22ECh. 2.8 - Prob. 23ECh. 2.8 - Prob. 24ECh. 2.8 - Prob. 25ECh. 2.8 - Prob. 26ECh. 2.8 - Prob. 27ECh. 2.8 - Prob. 28ECh. 2.8 - Prob. 29ECh. 2.8 - Prob. 30ECh. 2.8 - Prob. 31ECh. 2.8 - Prob. 32ECh. 2.8 - Prob. 33ECh. 2.8 - Prob. 34ECh. 2.8 - Prob. 35ECh. 2.8 - Prob. 36ECh. 2.8 - Prob. 37ECh. 2.8 - Prob. 38ECh. 2.8 - Prob. 39ECh. 2.8 - Prob. 40ECh. 2.8 - Prob. 41ECh. 2.8 - Prob. 42ECh. 2.8 - Prob. 43ECh. 2.8 - Prob. 44ECh. 2.8 - Prob. 45ECh. 2.8 - Prob. 46ECh. 2.9 - Prob. 1ECh. 2.9 - Prob. 2ECh. 2.9 - Prob. 3ECh. 2.9 - Prob. 4ECh. 2.9 - Prob. 5ECh. 2.9 - Prob. 6ECh. 2.9 - Prob. 7ECh. 2.9 - Prob. 8ECh. 2.9 - Prob. 9ECh. 2.9 - Prob. 10ECh. 2.9 - Prob. 11ECh. 2.9 - Prob. 12ECh. 2.9 - Prob. 13ECh. 2.9 - Prob. 14ECh. 2.9 - Prob. 15ECh. 2.9 - Prob. 16ECh. 2.9 - Prob. 17ECh. 2.9 - Prob. 18ECh. 2.9 - Prob. 19ECh. 2.9 - Prob. 20ECh. 2.9 - Prob. 21ECh. 2.9 - Prob. 22ECh. 2.9 - Prob. 23ECh. 2.9 - Prob. 24ECh. 2.9 - Prob. 25ECh. 2.9 - Prob. 26ECh. 2.9 - Prob. 27ECh. 2.9 - Prob. 28ECh. 2.9 - Prob. 29ECh. 2.9 - Prob. 30ECh. 2.9 - Prob. 31ECh. 2.9 - Prob. 32ECh. 2.9 - Prob. 33ECh. 2.9 - Prob. 34ECh. 2.9 - Prob. 35ECh. 2.9 - Prob. 36ECh. 2.9 - Prob. 38ECh. 2.9 - Prob. 39ECh. 2.9 - Prob. 40ECh. 2.9 - Prob. 41ECh. 2.9 - Prob. 42ECh. 2.9 - Prob. 43ECh. 2.9 - Prob. 44ECh. 2.9 - The method of implicit differentiation is often...Ch. 2.9 - Prob. 46ECh. 2.9 - Prob. 47ECh. 2.9 - Prob. 48ECh. 2.9 - Prob. 49ECh. 2.9 - Prob. 50ECh. 2.9 - Prob. 51ECh. 2.9 - Prob. 52ECh. 2.9 - Prob. 53ECh. 2.10 - Prob. 1ECh. 2.10 - Prob. 2ECh. 2.10 - Prob. 3ECh. 2.10 - Prob. 4ECh. 2.10 - Prob. 5ECh. 2.10 - Prob. 6ECh. 2.10 - Prob. 7ECh. 2.10 - Prob. 8ECh. 2.10 - Prob. 9ECh. 2.10 - Prob. 10ECh. 2.10 - Prob. 11ECh. 2.10 - Prob. 12ECh. 2.10 - Prob. 13ECh. 2.10 - Prob. 14ECh. 2.10 - Prob. 15ECh. 2.10 - Prob. 16ECh. 2.10 - Prob. 17ECh. 2.10 - Prob. 18ECh. 2.10 - Prob. 19ECh. 2.10 - Prob. 20ECh. 2.10 - Prob. 21ECh. 2.10 - Prob. 22ECh. 2.10 - Prob. 23ECh. 2.10 - Prob. 24ECh. 2.10 - Prob. 25ECh. 2.10 - Prob. 26ECh. 2.10 - Prob. 27ECh. 2.10 - Prob. 28ECh. 2.10 - Prob. 29ECh. 2.10 - Prob. 30ECh. 2.10 - Prob. 31ECh. 2.10 - Prob. 32ECh. 2.10 - Prob. 33ECh. 2.10 - Prob. 34ECh. 2.10 - Prob. 35ECh. 2.10 - Prob. 36ECh. 2.10 - Prob. 37ECh. 2.10 - Prob. 38ECh. 2.10 - Prob. 39ECh. 2.10 - Prob. 40ECh. 2.10 - Prob. 41ECh. 2.10 - Prob. 42ECh. 2.10 - Prob. 43ECh. 2 - Prob. 1SPCh. 2 - Prob. 2SPCh. 2 - Prob. 3SPCh. 2 - Prob. 4SPCh. 2 - Prob. 5SPCh. 2 - Prob. 6SPCh. 2 - Prob. 7SPCh. 2 - Prob. 8SPCh. 2 - Prob. 9SPCh. 2 - Prob. 10SPCh. 2 - Prob. 11SPCh. 2 - Prob. 12SPCh. 2 - Prob. 13SPCh. 2 - Prob. 14SPCh. 2 - Prob. 15SPCh. 2 - Prob. 16SPCh. 2 - Prob. 17SPCh. 2 - Prob. 18SPCh. 2 - Prob. 19SPCh. 2 - Prob. 20SPCh. 2 - Prob. 21SPCh. 2 - Prob. 22SPCh. 2 - Prob. 23SPCh. 2 - Prob. 24SPCh. 2 - Prob. 25SPCh. 2 - Prob. 26SPCh. 2 - Prob. 27SPCh. 2 - Prob. 28SPCh. 2 - Prob. 29SPCh. 2 - Prob. 30SPCh. 2 - Prob. 31SPCh. 2 - Prob. 32SPCh. 2 - 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