the focal length <span> is much more decent for a concave, and also worse</span><span> for a convex mirror. When the image that is given, distance is good and decent, images are always on the same area of the mirror as the object given , and it is not fake. images distance is </span>never positive <span>, the image is on the oppisite side of the mirror, so the image must be virtual.</span>
Sum the forces in the y (upward) direction




Applying the kinematic equations of linear motion we have that the displacement as a function of the initial speed, acceleration and time is



Again through the kinematic equation of linear motion that describes velocity as the change of displacement in a given time, we have to



Therefore the horizontal distance between the target and the rocket should be 38.83m
Explanation:
It is given that,
Mass of cardinal,
Mass of baseball, 
Both cardinal and baseball have same kinetic energy. We need to find the ratio of the cardinal's magnitude
of momentum to the magnitude
of the baseball's momentum.

Kinetic energy is given by, 




So, 
So, the ratio of cardinal's magnitude of momentum to the magnitude of the baseball's momentum is 53 : 100
The rate of altitude increase is equivalent to the vertical component of the pilot's velocity. Let the first pilot's velocity be A and the second's be B.
Ay = Asin(∅)
Ay = 400sin(30)
Ay = 200 mph
By = Bsin(∅)
By = 300sin(40)
By = 192.8 mph
200 - 192.8 = 7.2 mph
The first pilot gains altitude faster by 7.2 mph than the second pilot.