Question

Which physical quantities decide the trajectory of any motion ​

Answer 1

Answer:

Speed is a scalar quantity. Speed only gives us the magnitude, not direction. So, we can say that velocity and acceleration can determine the direction of the motion of a body.

Answer 2

Answer:

velocity and acceleration

Explanation:

Speed can be defined as the change of position of an object per unit time. Speed is a scalar quantity. Speed only gives us the magnitude, not direction.

So, we can say that velocity and acceleration can determine the direction of the motion of a body