3. a vehicle is on a hill that has a 20 degree angle below the horizontal. an
irresponsible driver leaves the vehicle in neutral. the vehicle rolls backwards
toward the edge of the cliff. the acceleration is 2.37 m/s2 and the distance
traveled is 55m before the vehicle reaches the edge of the cliff.
a. how much time will the vehicle be in the air after leaving the cliff?
b. how far horizontally will the vehicle be away from the cliff when it lands?

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.