- #1
toddler
- 17
- 0
Hi, having trouble with the following problem:
A stone is thrown vertically upward from a bridge 30.0m high at an initial velocity of 15.0 m/s . How long will it take for the stone to hit water?
I set it up first by writing my givens down:
initial velocity = 15.0 m/s.
distance (x) = 30 m ( I'm not sure if its positive or negative since its coming back down)
Acceleration = -9.8 m/s squared (negative because its force coming down against gravtiy)
used kinematic equation : X= Intial velocity (time) + 1/2 at squared
i'm not getting the answer 4.44 that I am supposed to be getting..pleast help
A stone is thrown vertically upward from a bridge 30.0m high at an initial velocity of 15.0 m/s . How long will it take for the stone to hit water?
I set it up first by writing my givens down:
initial velocity = 15.0 m/s.
distance (x) = 30 m ( I'm not sure if its positive or negative since its coming back down)
Acceleration = -9.8 m/s squared (negative because its force coming down against gravtiy)
used kinematic equation : X= Intial velocity (time) + 1/2 at squared
i'm not getting the answer 4.44 that I am supposed to be getting..pleast help