Question

Ignore air resistance.

A diver starts 30 feet above the water (about the height of an Olympic platform diver). What is the diver’s velocity at impact?

Answer 1

@mukushla can u help?

Answer 2

no its calculus

Answer 3

soo is it correct?

Answer 4

okay :/

Answer 5

@rulnick @rizwan_uet @RadEn can u help?

Answer 6

use second equation of motion
2as = vf^2 -vi^2

Answer 7

put
a = g =9.8
s = 30 feet = ........meters do conversion
vi =0
now you can find vf

Answer 8

okay thank YOU! :)

Answer 9

welcome

Answer 10

ok so its like this? 2(9.8) (9.14) = vf^2 - 0^2

Answer 11

@dumbcow can u check this?

Answer 12

@dan815

Answer 13

hi

Answer 14

how long does it take him to fall down 30 feet?

Answer 15

when you get that time multiply it by acceleration
as
accel=velocity/time
so velocity=accel*time
time you can get by solving this equation for t
h=1/2at^2 where h = displacement