Question

A particle is moving along a projectile path where the initial height is 160 feet with an initial speed of 144 feet per second. What is the maximum height of the particle?

128 feet

224 feet

272 feet

484 feet

Answer 1

Assuming Earth's gravity, the formula for the flight of the particle is:

s(t) = -16t^2 + vt + s = -16t^2 + 144t + 160.

This has a maximum when t = -b/(2a) = -144/(-32) = 9/2.

Therefore, the maximum height is s(9/2) = -16(9/2)^2 + 144(9/2) + 160 = 484 ft.

I hope this helps!

Answer 2

hmmm

Answer 3

hmm

Answer 4

hmmmm

Answer 5

hahahh elvin.. shut up (:

Answer 6

what i do? :)

Answer 7

uhh, nothing?

Answer 8

uhh,nothing?

Answer 9

MUHAHAHAHAHAHAH!!!!

Answer 10

yeah i knowwwww hahaha

Answer 11

lol