Question

i have a question about arithmetic series really complicated

Answer 1

where?

Answer 2

A Space Craft Is At An Altitude Of 5000m And Then At The 1st Second The Spacecraft Drops a 100m And Then Evry Second After That It Drops 5m .What's The New Altitude Of The Spacecraft

Answer 3

After how many secs?

Answer 4

whats making me confused is that they dont ask you after how many seconds

Answer 5

Perhaps they want to know after how many secs will it be on the ground?

Answer 6

no i dont think that its beyond that

Answer 7

Altitute = 5000 - 100 - 5 t
= 4900 - 5 t = 0
5t = 4900
t = 980
+ the second to fall 100m, 981 s.

Answer 8

thats what i did

Answer 9

but the question is based on series

Answer 10

I don't get it.

Answer 11

me either :s

Answer 12

it was on todays exam and someone coppied it because it will come in tomorrows exam too so i'm trying to solve it

Answer 13

They must have give you the incomplete question.

Answer 14

i dont think so

Answer 15

because i heard people solved it like that

Answer 16

i dont think so

Answer 17

it was on todays exam and someone coppied it because it will come in tomorrows exam too so i'm trying to solve it

Answer 18

altitude greater than or equal to zero = 4900-5t metres (t=0,1,2....).