If the equation of trajectory of a body is m, What is the force that makes it move if its mass is 4kg?
- Mass m = 4 kg
- Equation of position: m
According to the Newton´s second law:
We know the mass and know that the instantaneous acceleration is the derivative of the instantaneous velocity, regarding instantaneous time and velocity, is the derivative of the vector of position regarding time.
Deriving the first vector of position and then the velocity vector:
Replacing the expression of the second law: