Question

Can Someone Help On 7&8?
ILL GIVE YOU A MEDAL<3

Answer 1

Whats the question ?

Answer 2

Ohhh , thats hard . You should be able to answer it , you the smart one lol

Answer 3

No i HATE MATH REMEMber!:p

Answer 4

LOL I do too , remember ?

Answer 5

i kno who can help me!:) maybe @gorv

Answer 6

Alright then :) lol sorry i couldnt help

Answer 7

no problammo

Answer 8

okkk

Answer 9

initially height of ball will be =0

Answer 10

ok

Answer 11

height is given that means distance of the ball from ground

Answer 12

h(t)

Answer 13

yeah velocity=distance/time

Answer 14

or v=d(x)/dt....where x is distance and function of time

Answer 15

diffeentiate h(t) to get speed

Answer 16

idk i give up /; i hate this sh..t>;(

Answer 17

okk ...how abt dis
vellocity = dx/dt
if x is function of time
here h is function of time so differntiate it to get velocity
v=dh/dt=-16*2*t+32=-32t+32
at highest point speed of ball will become zero
0=-32t+32
32t=32
t=1 sec

Answer 18

Lol I'm pretty sure you're suppose to use the quadratic formula :)

Answer 19

nope

Answer 20

so its a? for 7

Answer 21

ok now put t=1 in h(t) to get max height
h(1)=-16*(1)^2+32*1+6=-16+32+6=22 meter

Answer 22

yeah moni its A

Answer 23

and 8

Answer 24

similarly do for 8
differntiate h(t)
0=-32t+184
t=184/32=5.75 sec

Answer 25

its d or c

Answer 26

*Grabs Popcorn* Reads thru comments.

Answer 27

put t in h(t)=-16*5.75^2+184*5.75+20
=549

Answer 28

lol @JavierCerda

Answer 29

C

Answer 30

so its c

Answer 31

thanks