Question

A marble is projected vertically up by a spring gun, and reaches the maximum height of 9.8m. What is the initial speed of the marble? How long did it take the marble to reach maximum height?

Answer 1

\[V _{f}^{2} = 0 = V _{i}^{2} -2*g*9.8m\]

Answer 2

what is the final velocity though?

Answer 3

zero

Answer 4

:O ok hold on I would like to see if I get it right

Answer 5

192.08 m/s?

Answer 6

= Vi^2

Answer 7

so...

Answer 8

13.85

Answer 9

m/s

Answer 10

take the....

Answer 11

______ root of both sides...

Answer 12

yes

Answer 13

thanks

Answer 14

sure:)

Answer 15

got the time part figured out?