Answer:
f(x) =
Step-by-step explanation:
Let the equation of the function is,
f(x) = mx + b
Here, m = slope of the line
b = y-intercept
From the graph attached,
y-intercept 'b' = 4
Slope =
=
=
Therefore, equation of the function representing the graph will be,
f(x) =
From the equation of motion, we know,
Where s= displacement
u= initial velocity
a= gravitational force
t= time
Displacement is 0 since the ball comes back to the same point from where it was thrown.
A = since the ball is thrown upwards.
Plug the known values into the equation.
=>
Solving for u gives :
u= 16.67 m/ sec ....... equation (1)
At maximum height, final velocity i.e v is 0
Time take to reach the top =
=>
Solving for s we get
s= 14.16 m
Answer: hrs
<u>Step-by-step explanation:</u>
1st painter:
2nd painter:
1st + 2nd = Together
+
=
+
=
4x + x = 8
5x = 8
x =
=