4. Sketch a position-time graph that shows a person walking at 2.0 m/s towards a reference point. He started walking 10.0 m away from the reference point. Once he reached the
reference point, he jogged at 5.0 m/s in the same direction for 2 seconds. He then stops for 4
seconds, turns around and sprints back to the reference point in 1 second.

Explain the consequences of this addiction to the brain tissue

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.