Question

Can you help me with problems "d" and "e" of the following trig app?

Answer 1

I have already done the rest

Answer 2

Are you there?

Answer 3

wow. that intense

Answer 4

1 hour waiting is too much

Answer 5

The question I am pondering is why at time zero has the rider already traveled 70 meters.
1 hour waiting is too much so don't wait for me. I'll be back but not always fast. Trig is not something I can grasp intuitively.

Answer 6

@open2study --> Do you know the period of the ferris wheel equation?

Answer 7

So that it is easier to understand, I will show you my answer to the first questions and the last question

Answer 8

Where is the rider when the function hits a minimum? Would that not be when the rider passes through the point at which he got on the ferris wheel?

Answer 9

I know the minimum value, its 3. But the question asks at what time will the rider reach at the lowest point, 3.

Answer 10

We need e which is the period of this function. I need to look up that formula. We have to divide 2 pi by something, maybe .2094.

Answer 11

is it this? [0.2094(t-30)]= 3pi /2

Answer 12

nvm.

Answer 13

The period is 30 radians. 2pi/.2094

http://dwb4.unl.edu/chem/chem869m/chem869mmats/sinusoidalfns.html

Answer 14

So it takes 30 minutes to get to the bottom?

Answer 15

It takes 30 radians of "angle" for one complete rotation of this wheel. I don't know how much time that is yet. Does this attachment look like anything that might help.

Answer 16

I knwo for usre that the = 3 at the end is correct because thats the lowest point. I just dont know how to get the time

Answer 17

I guess we'll have to solve this equation for t when h(t) = 3.

Answer 18

I'm down to -1 - sin(2.094t - 62.82) and think I need to use the sine of a difference formula or at least try it.

Answer 19

Ok. Im trying some stuff too

Answer 20

Do you use a graphing calculator in class?

Answer 21

yes

Answer 22

Could you read off the graph the t value that goes with the minumum distance. Then, there will be multiple values.

Answer 23

We need somebody who is good at trig here to help us.

Answer 24

The minimum value is 3 which is good because we wouldn't want the ferris wheel hitting the ground.

Answer 25

Hey Mertsj:)

I already solved all of them. Thank you for coming though:)

Answer 26

good for you