I know there’s a formula sheet for the free response but are there any essential formulas I should memorize for the multiple choice?

im a 12 class student & preparing for AIEEE,IIT

we’ve only learned two equation formulas for free fall:
v=gt
d=1/2gt^2
and two for speed / acceleration:
s=d/t
a= V2 – V1
————
T2 – T1
so don’t make them too complicated please !

hi i have a problem i am stuck on. does anyone know how to do this? xD
“calculate time using the free-fall formula”
and the vertical distance given is 437 cm…
i got 6.6 seconds. is this correct? it seems a bit off.
can someone help!

im a 12 class student & preparing for AIEEE,IIT

Ball bearings can be made by letting spherical drops of molten metal fall inside a tall tower-called a shot tower-and solidify as they fall.
a) I f a bearing needs 4.0s to solidify enough for impact , how high must the tower be?
b)Whats the bearing’s impact velocity?

Relaxation Visualization