Question

a ball is dropped from a height of 500 feet. after how many seconds will it hit the ground ?

Answer 1

what do u think is the accleration due to gravity

Answer 2

@hubertH

Answer 3

USE THIS: s=ut + 1/2 at^2

Answer 4

would be wonderful if that equal sign was an absolute value sign instead

Answer 5

what if i use V=u+at

Answer 6

u dont know the final velocity

Answer 7

answer is 5.8 seconds

Answer 8

got it? @hubertH

Answer 9

Also, need to convert 500ft into meter

Answer 10

IF u will use a=9.81 m/s

Answer 11

then i'll use Kinetic energy =potential energy

Answer 12

I mean a=9.81m/s^2

Answer 13

YA that can be done......... to calculate final velocity @hubertH

Answer 14

But that will take some extra time

Answer 15

@saura how do we convert feet into meters

Answer 16

u can use google

Answer 17

3.28084 feet = 1m

Answer 18

does that help?

Answer 19

@ sauravshakya thanks bro the answer is 5,577

Answer 20

is that correct? i tried both formulas and i got the same answer

Answer 21

Yep.......... u r very correct @hubertH