Question

A roller coaster car rapidly picks up speed as it rolls down the slope as it starts downslope its speed is 4 miles per second but 3 seconds later at the bottom of the slope its speed is 22 miles per second what is the average acceleration?

A.-6m/s
B.7.33m/s
C.6m/s

Answer 1

x=6 m/s/

Step-by-step

eAccel = Vf - Vi

t x=22 m/s – 4 m/s

3 s

Accel=x

Vf=22 m/s x=18 m/s

Vi=4 m/s 3 s

t=3 s

Answer 2

`6 m/s^(2)`

Explanation:

a =
`(v-u)/(t)`

a =
`(22 m/s- 4 m/s)/(3s)` =
`6 m/s^(2)`

Hope this helped!