An Olympic downhill skier (mass = 80 kg) races down a 30ø slope. If he starts from rest and the track is 50 m long, what is his final velocity at the bottom of the hill ?

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.

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.