Manuel and Sandy were partners. Sandy held the accelerometer in her hands while Manuel watched the water line. Throughout Sandys walk,
the water line remained level. What does that tell the students about
Sandy's motion?
Sandy's velocity changed when she slowed down or
sped up.
A)
Sandy's speed might have changed but her direction
B) did not.
Sandy must not have been moving if the water line
remained level
Sandy's velocity is constant: her speed and direction
did not change.
D)