Acar accelerates from rest at 3.6 m/s 2 . how much time does it need to attain a speed of 5 m/s?

car starts from rest

final speed attained by the car is

acceleration of the car will be

now the time to reach this final speed will be

so it required 1.39 s to reach this final speed

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.