CHECKPOINT 1
•A particle moves along the x-axis. Does the kinetic
•energy of the particle increase, decrease, or remain
•the same if the particle’s velocity changes
a)From -3 m/s to -2 m/s and
b)From -2 m/s to 2 m/s ?
c)In which situation, is the work done on the particle +ve, -ve, or zero?