Alexis is riding her skateboard. If Alexis has a mass of 50 kg:
a. What is her kinetic energy if she travels at 5 m/sec?

What is the mass of the same rock on the earth

Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain