An object is moving due north with an acceleration in that direction. From only this information one can conclude

Options

A. that there can be a single force on the object directed due north
B. that there is a net force on the objected due north
C. that there may be several forces on the object, but the largest must be directed due north
D. nothing about the forces on the object

Answer

A, B

Explanation

`F_("net")=ma`
`vec(a)=aj`
`therefore F_("net")` is in North