Add vectors 7.5 m/s and the vector -2.9 m/s

How To:

How do you add two vectors?  

To add or subtract two vectors, add or subtract the corresponding components. Let →u=⟨u1,u2⟩ and →v=⟨v1,v2⟩ be two vectors. The sum of two or more vectors is called the resultant. The resultant of two vectors can be found using either the parallelogram method or the triangle method .

gets less

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up