A community for students.
Here's the question you clicked on:
 0 viewing
AmTran_Bus
 3 years ago
Velocity and acceleration mathematics question!
Don't be scared to open...
It looks long
AmTran_Bus
 3 years ago
Velocity and acceleration mathematics question! Don't be scared to open... It looks long

This Question is Closed

AmTran_Bus
 3 years ago
Best ResponseYou've already chosen the best response.1A lemming marches off an ice berg, falling directly downward from a height of 12.40 ethers. 0.10 seconds later, he is 9.151 meters above the ocean below. 0.20 seconds this altitude is reduced to 5.804 meters, and at 0.30 seconds he as fallen to 2.359 meters above the ocean. 1. Via Matrix operations, develop a mathematical expression that represents this fall. 2. If the lemming failed to bring an umbrella, how many seconds into this fall would he impact the ocean? 3. If he did have an umbrella to break his fall, and he opened it 7.000 meters above the water, how much time would he have fallen freely prior to opening the umbrella? 4. What would his speed be the instant he opened his umbrella? 5. What is his acceleration due to gravity?

goformit100
 3 years ago
Best ResponseYou've already chosen the best response.0Why am i Tagged here ?

AmTran_Bus
 3 years ago
Best ResponseYou've already chosen the best response.1you gave me a medal.

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1I really don't know what to do especially via matrix operations. But I would take an expression \(\text{altitude = }at^3+bt^2+ct+d\), put the values for t (0, 0.1, 0.2, 0.3) and put the values for the altitude. And then i'd got a system of the linear equations. And solve it using matrix operations.

AmTran_Bus
 3 years ago
Best ResponseYou've already chosen the best response.1If you don't mind, could you show me what the equation would be? Like 12.40T3?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1The first one will be \(12.4=a\cdot0^3+b\cdot0^2+c\cdot0+d\) Because at the moment \(t=0\) the lemming was at the height = 12.4 meters. Then you will have 4 equtions and 4 variables  a,b,c,d. Solve and find the law of the falling.

AmTran_Bus
 3 years ago
Best ResponseYou've already chosen the best response.1Oh my goodness. This one is ROUGH!

AmTran_Bus
 3 years ago
Best ResponseYou've already chosen the best response.1But that is for one, correct?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1\(\text{altitude = }4.9t^232t+12.4\)

AmTran_Bus
 3 years ago
Best ResponseYou've already chosen the best response.1Wow, thanks, how did you get that?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1You should do this calculation by yourself. Be honest.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.