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Allushta [10]
3 years ago
8

The position of a particle on the x-axis at time t, t > 0, is s(t) = ln(t) with t measured in seconds and s(t) measured in fe

et. What is the average velocity of the particle for e ≤ t ≤ 2e? A. ln2 B. the quotient of 1 and the quantity of 3 times C. the quotient of the natural logarithm of 2 and e D. the quotient of the natural logarithm of 2 and 2
Mathematics
2 answers:
Mrrafil [7]3 years ago
8 0

Answer:

C.<em> </em><em>The quotient of the natural logarithm of 2 and e.</em>

Step-by-step explanation:

The position of a particle on the x-axis at time t, t > 0, is given by

s(t) = \ln(t)

with t is in seconds and s(t) is in feet.

The rate of change is,

=\dfrac{f(b)-f(a)}{b-a}

So rate of change of position or average velocity, for e ≤ t ≤ 2e will be,

=\dfrac{\ln2e-\ln e}{2e-e}

=\dfrac{\ln2e-\ln e}{e}

=\dfrac{\ln\frac{2e}{e}}{e}

=\dfrac{\ln2}{e}

Therefore, option C is the correct answer.

Shtirlitz [24]3 years ago
3 0

Answer:

Option: C is the correct answer.

C. the quotient of the natural logarithm of 2 and e .

Step-by-step explanation:

We are given a function s(t) that denotes the the position of a particle on the x-axis at time t, t > 0, as:

                              s(t)=\ln (t)

Now we are asked to find the average velocity of the particle for e ≤ t ≤ 2e.

We know that the average velocity is defined as the ratio of total distance to total time.

Now total distance covered in e ≤ t ≤ 2e is:

s(2e)-s(e)

=\ln (2e)-\ln (e)

=ln (2e/e)

( Since, \ln (m)-\ln (n)=\ln (m/n) )

=\ln 2

Also, total time is:

2e-e=e

Hence, average velocity is:

Average\ Velocity=\dfrac{\ln (2)}{e}

Option: C is the correct answer.

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