Its a video of a glider pushed forward and going backdue to a fan blowing of the opposite direction of beingpushed.
After watching this video, Blake, a student in an introductoryphysics class, makes the following claim:
The acceleration and velocity of the glider are bothmomentarily zero when the glider changes direction. The velocity ofthe glider must be zero for an instant when the glider changesdirection. Because the velocity is zero, the acceleration must alsobe 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 thisactivity.