¿Que es la posicion? ¿Cual es el convenio para las posiciones?

A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

What is a possible result of higher air temperature caused by global warming