Help me for 10 points its math and science

If an object has 100 joules of potential energy (PE) at the top of a ramp, how much kinetic energy (KE) will there be at the other two locations indicated, half-way down the ramp and at the bottom the ramp?
A) 0J and 50J
B) 50J and 0J
C) 50J and 100J
D) 100J and 50J

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

explanation:

step-by-step explanation: