Question

please help

Answer 1

I took the acceleration as -9.81 , the intitial position as 45 the final as 0 and the intial velocity -2

Answer 2

sounds good.

Answer 3

but I'm getting a negative under the root

Answer 4

x = ut + 1/2 a t^2 ?

-45 = (-2) t + 1/2 (-9.8) t^2 ??

Answer 5

Never mind ! Omg I made such a stupid mistake I switched the initial and final positions in my solving ! Thank you so much, I'm sorry I wasted your time