Answer:
Your answer will be C. 3.8 kPa.
Growing quickly
concentrated in a few areas
<span>putting pressure on resources and space</span>
Because in reality there are frictional forces acting on the ball, against the direction of its motion. In fact, because of the friction between the ball and the surface, the ball loses little by little its energy, so its velocity decreases and eventually it stops.
In an ideal world with no friction, there would be no forces acting on the ball, so its energy must be conserved and this means that the ball would continue its motion forever.
Answer:
no, the maximum height = 12.3m
Explanation:
The equation for the trajectory of the ball for a given angle can be derived from:
(1) 
and
(2) 
Combining equation 1 and 2:
(3) 
Taking the derivative:
(4) 
Setting equation 4 equal to zero to calculate the maximum angle:
(5) 
Plugging equation 5 back into equation2 confirms, the trajectory can't reach the target. The maximum height is 12.3m.