A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
a fish swimming in a horizontal plane has a velocity v(i)=(4.00i+1.00j) m/s at a point in the ocean where the position realative to a certain rock is r(i)=(10.0i4.00j)m. After the fish swims with constant acceleration for 20.0 s, its velocity is v=(20.0i5.00j)m/s. a) what are the components of the acceleration of the fish? what is the direction of its acceleration with respect to unit vector (i) what if the fish maintains constant acceleration, where is it at 25.0 sec and in what direction is it moving.
anonymous
 4 years ago
a fish swimming in a horizontal plane has a velocity v(i)=(4.00i+1.00j) m/s at a point in the ocean where the position realative to a certain rock is r(i)=(10.0i4.00j)m. After the fish swims with constant acceleration for 20.0 s, its velocity is v=(20.0i5.00j)m/s. a) what are the components of the acceleration of the fish? what is the direction of its acceleration with respect to unit vector (i) what if the fish maintains constant acceleration, where is it at 25.0 sec and in what direction is it moving.

This Question is Open

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0As the acceleration is constant, decompose the motion into x and y components u=4 v=20 t=20 and u=1 v=5 t=20 Use a=(vu)/t to find a It is a=0.8 and a=0.25 S0\[v(t)=(40.8t)i,(10.25t)j\]Integrating:\[r(t)=(4t0.4t^2)i,(1t0.125t^2)j\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Sorry, that was minus 4, not 5, a is still 0.25

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I'm not sure if that unit vector refers to the fish's position or velocity.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0For the 2nd question, just plug in 25 to v(t) and r(t)
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.