Given,
Rate of free fall = 216 km/h
Solution,
km/h to m/s is converted as follows :
So, the rate of fall is 60 m/s.
If t = 20 s
Assume, initial velocity = 0
It will move under the action of gravity.
Using equation of motion,
Hence, this is all for the solution.
Answer:
70/9
Step-by-step explanation:
9x-81= -11
9x=-11+81
9x= 70
x= 70/9
Answer: -15x+6
c(x) = 3x - 6
d(x) = -5x + 4
(cod)(x)=
c(d(x))=
c(-5x+4)=
3(-5x+4)-6=
-15x+12-6=-15x+6
You can use Pythagoras theorem to calculate x:
12² + 14² = x²
144 + 196 = x²
x² = 340
x = √340 ≈ 18,44