Does the net force acting on a moving object have to be in the same direction as the momentum of the object? explain

Yes

Explanation:

Momentum and velocity as vectors have the same direction, according to the formula p = ma. The net force is also similar to net acceleration of the object. In that case, yes, an object can accelerate in one direction and move in another. That acceleration will of course affect that initial velocity.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west