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

c) up is the direction the magnetic force is acting on the charge.

e/c, where e is its total energy