Respond to the following based on your reading.
m
1. what amount of work is done when a force of 50 n is used to drag an object a distance of 20
meters across a floor?
i
2. what's the kinetic energy of an object that has a mass of 12 kilograms and moves with a velocity
of 10 m/s?
3. a skateboarder is inside
of a half-pipe, shown here.
explain her energy
transformations as she
jumps off at point a, slides
to point b, and finally
reaches point c
g
4. if the skateboarder
continues going back and
forth on the half-pipe she'll