Question

@ganeshie8

Answer 1

A ball is thrown vertically upward from the top of a 100 foot tower, with an initial velocity of 10 ft/sec. Its position function is s(t) = –16t2 + 10t + 100. What is its velocity in ft/sec when t = 2 seconds?

Answer 2

it is supposed to say negative 16

Answer 3

that is what the question marks are

Answer 4

is it -38?

Answer 5

Oh wait a sec, you're given poistion function... so differentiating it you would get velocity

Answer 6

\[\large v(t) = s'(t) = \left( –16t^2 + 10t + 100\right)'\]

Answer 7

i cant see it

Answer 8

refresh ur page

Answer 9

differentiate and plugin t = 2

Answer 10

oh got it! thanks!