Calculate: Kinetic energy (K) depends on the mass and speed (v) of the object. The equation for kinetic energy is: K = mv2
With Hill 1 set to 75 cm, click Play and allow the car to reach the bottom.

What is the final speed of the car, in meters per second?

What is the kinetic energy of the car, in joules? (Use the mass in kg.)
0.386 J
How does the car’s kinetic energy at the bottom of the hill compare to its potential energy at the top?

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Hi, your answer is not correct. this is a cumulative  

Sorry i don’t know what to do