Need a little help for this physics question. Thx.

[j@cko]

A watercraft with an initial velocity of 6.4m/s [E] undergoes an average acceleration of 2.0m/s^2 for 2.5s.
What is the final velocity of the watercraft?

 

[Haircut]

11.4 m/s

final velocity = inital velocity + acceleration * time.

 

[zzzz]

African Watercraft or European?

 

[ElFenix]

Originally posted by: zzzz
African Watercraft or European?

hmmm... monty python applied to random physics homework...

 

[j@cko]

11.4 isn't the answer in the book though. The book says 8.1m/s [38* Sof E].

 

[aeroguy]

V = Vi + a * t

The book is wrong.

Nick

 

[TNTrulez]

Originally posted by: j@cko
11.4 isn't the answer in the book though. The book says 8.1m/s [38* Sof E].

Is this a vector question?

 

[JayHu]

Originally posted by: j@cko
11.4 isn't the answer in the book though. The book says 8.1m/s [38* Sof E].

what direction is the acceleration? break it into components.

 

[j@cko]

yes, it is a vector question.