It’s halloween and time for the costume dance and you just can’t wait. you think you have everything planned perfectly – and are dressed like grease! on your way to the dance though there is some slow driving person in front of you, so you slam on the gas going from 30. mi/hr to 60. mi/hr. luckily your date brought a stop watch and told you the whole thing took place in 10.5s. what is your acceleration and how far did you date go?

1.3 m/s², 210 m

Explanation:

Average acceleration is change in velocity over change in time.

First, convert to SI units.

30. mph ≈ 13.4 m/s

60. mph ≈ 26.8 m/s

a = Δv / Δt

a = (26.8 m/s - 13.4 m/s) / 10.5 s

a = 1.28 m/s²

Rounded to 2 sig-figs, your acceleration is 1.3 m/s².

The distance traveled is:

x = x₀ + ½ (v + v₀)t

x = (0 m) + ½ (26.8 m/s + 13.4 m/s) (10.5 s)

x = 211 m

Rounded to 2 sig-figs, you and your date traveled 210 m.

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.