Question

100 pointsss
answer it if u can!!! ♥️♥️​

Answer 1

Answer:

the answer is in the above picture

please mark it as brainlist...

Answer 2

solution

u= -10 m/s

g= 10 m/s^2

S=7.5m

t=?

S=ut+1/2at^2

7.5= -10t + 5t^2

5t^2 - 10t - 7.5 =0

t^2 - 1.5= 0