Two vehicles are travelling at 13 m/s. The driver of the truck then accelerates at 1.2 m/s? until both vehicles are travelling at 20 m/s. Calculate the time taken for this acceleration.

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)

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

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?