Use the equation of motion under gravity
v = u + at where v = final velocity , u = initial velocity, t = time and a = acceleration due to gravity. At maximum height v = 0. Also u = 128 ft/s , a = -32 f/s/s and t is to be found. So
0 = 128 - 32t
32t = 128
t = 4 secs <--- answer to 19a.
19b
v^2 = u^2 + 2as where s = distance:-
0 = 128^2 - 2*32*s
s = 128^2 / 64 = 256 feet
Formulas needed:
Square area = b^2
Rectangle area = bh
Triangle area = bh/2
Parallelogram = bh
Trapezoid area = a+b/2(h)
Rhombus area = pq/2
Even better; use online calculators.
To use these formulas, you need to substitute the values given for b,h,a,b,p or/and q and then solve to get area.
So for this example, since it's a rectangle, you use formula A = bh. Base is 5.1, and height is 6.
Substitute now.
A = bh
= (5.1)(6) (substitute)
= 30.6 (multiply)
Therefore the area is 30.6 m^2. Don't forget the unit measurements, which is *measurement*^2.
Answer:
x = 2 , y = -3
Step-by-step explanation:
x+y=-1
x-y=5
by plural The two equations
2x=4
x=2
Offset value x Into the equation
(2)+y=-1
y= -1-2 = -3
Answer:
cdzcz
Step-by-step explanation:
