Question

Its a video of a glider pushed forward and going back due to a fan blowing of the opposite direction of being pushed.

After watching this video, Blake, a student in an introductory physics class, makes the following claim:

The acceleration and velocity of the glider are both momentarily zero when the glider changes direction. The velocity of the glider must be zero for an instant when the glider changes direction. Because the velocity is zero, the acceleration must also be zero.

Respond to Blake's claim. Which parts, if any do you agree with, and which parts do you not agree with? To support your response, use evidence from your experience, or from the videos in this activity.

Answer 1