Answer:
Step-by-step explanation:
u = Initial velocity of baseball
= Angle of hit = 
x = Displacement in x direction = 400 ft
y = Displacement in y direction = 15 ft
= Height of hit = 2.5 ft
= g = Acceleration due to gravity = 
t = Time taken
Displacement in x direction
Displacement in y direction
The minimum initial velocity needed for the ball to clear the fence is
Let s be the hypotenuse and using the Pythgorean theorem,
<span><span>s2 </span>= 25 + <span>x2</span></span>taking the first derivative of the function with respect to t, the result is <span>2s <span><span>ds /</span><span>dt </span></span>= 2x <span><span>dx/ </span><span>dt</span></span></span><span>substituting s = 10 and ds/dt= 240,
we get x = sqrt(100-25) = 5</span>√3
Perpendicular slope is opposite and reciprocal
<span>the green line has a slope of 3/4
so </span><span>the slope of the red line is -4/3
answer
</span><span>c)-4/3</span>
23
Those are not the answer:
1) 20 - can be divided by 2
2) 21 - can be divided by 3
3) 22 - can be divided by 2
4) 24 - can be divided by 2 and 4.
5) 25 - can be divided by 5
6) 26 - can be divided by 2
7) 27 - can be divided by 3
8) 28 - can be divided by 2 and 4
