Where is the acceleration directed during the rectilinear motion of a point if the point velocity module increases? decreases?

Acceleration during rectilinear motion of a point, if the modulus of the point’s velocity increases, co-direction with the velocity vector, if it decreases, it is opposite.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.