The rate of change of the downward velocity of a falling object is the acceleration of gravity (10 meters/sec 2) minus the acceleration due to air resistance. suppose that the acceleration due to air resistance is 0.1 inverse seconds times the downward velocity. write the initial value problem and the solution for the downward velocity for an object that is dropped (not thrown) from a great height. dv -10-0.1v y(t)-| 10-10e-0.1 x what is the terminal velocity? meters/second how long before the object reaches 90% of terminal velocity? how far has it fallen by that time? seconds ,nam progr? ? .practoe another venion

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Step-by-step explanation:

Write the initial value problem and the solution for the downward velocity for an object that is dropped (not thrown) from a great height.

if v(t) is the speed at time t after being dropped, v'(t) is the acceleration at time t, so the the initial value problem for the downward velocity is

v'(t) = 10 - 0.1v(t)

v(0) = 0 (since the object is dropped)

The equation v'(t)+0.1v(t)=10 is an ordinary first order differential equation with an integrating factor

so its general solution is  

To find C, we use the initial value v(0)=0, so C=-100

and the solution of the initial value problem is

what is the terminal velocity?

The terminal velocity is

How long before the object reaches 90% of terminal velocity?

90%  of terminal velocity = 90 m/sec

we look for a t such that

How far has it fallen by that time?

The distance traveled after t seconds is given by

So, the distance traveled after 23.026 seconds is

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get,   becomes

2. the function is translated 5 units to the right.

so, we get,   becomes

3. the function is translated 5 units upwards.

so, we get,   becomes

4. the function is translated 5 units downwards.

so, we get,   becomes

5. the function is reflected across x-axis.

so, we get,   becomes

6. the function is reflected across y-axis.

so, we get,   becomes .

step-by-step explanation:

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