Question

?

Answer 1

@jabez177

Answer 2

@mathmale

Answer 3

hint:
use kinematics equation
v1=v0+at
solve for t=(v1-v0)/a
where a=g=-32.2 ft/s^2

Answer 4

still confused idk what else to plug in

Answer 5

what else are you given?
the usual notations kinematics is
v0=initial velocity
v1=final velocity.
here we take the coordinate system as positive upwards.

Answer 6

so initial is 130?

Answer 7

exactly! Keep going.

Answer 8

t = -130/-32.2?

Answer 9

4?

Answer 10

yes, that's right numerically. You're missing something.

Answer 11

what

Answer 12

the negatives cancel out

Answer 13

Hint: Reread the question to check what was asked for.

Answer 14

the seconds part?

Answer 15

Yes, what does it ask for?

Answer 16

seconds

Answer 17

max

Answer 18

Well, in physics (and any science), a numerical answer must be accompanied by the units to be correct.
4 seconds could be 1/15 minute, or 1/900 hour, etc.

Answer 19

okay i got it

Answer 20

Good! :)

Answer 21

????? i hate these omg im lost

Answer 22

@mathmate

Answer 23

Please make a new post so others have a chance to help you too!