Charlie brown kicks a football at 20.5 m/s at 31.0°. it lands on flat ground 2.15 s later. how far away did it land? (unit = m)

distance, x = 38.17 m

Given:

velocity of the football, v = 20.5 m/s

football projected at an angle,

Period of flight, T = 2.15 s

Solution:

Since, the velocity is projected at some angle, so it can be resolved in horizontal and vertical components:

vertical component,

horizontal component,

the component responsible to cover certain distance is

Therefore, the distance covered by the football, x is given by:

⇒  

x = 38.17 m

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.