Auniform stick 1.5 m long with a total mass of 300 g is pivoted at its center. a 3.0-g bullet is shot through the stick midway between the pivot and one end the bullet approaches at 250 m/s and leaves at 140 m/s.
with what angular speed is the stick spinning after the collision?
ω= rad/s

2.2 rad/s

Explanation:

Given

Length of stick=1.5 m

mass m=300 gm

mass of bullet

approach velocity of bullet=250 m/s

Final Velocity of Velocity=140 m/s

Distance of Pivot to bullet hit is

Conserving Angular Momentum

Initial momentum

Moment of inertia of rod about Pivot

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2