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

Answer:

$6 m/s^{2}$

Step-by-step explanation:

a = $\frac{v-u}{t}$

a = $\frac{22 m/s- 4 m/s}{3s}$ = $6 m/s^{2}$

Hope this helped!

Answer 2

Answer:

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