I commute from Sparkle town to my High School each weekday. In this commute, I first travel at 18 m/s for 60 seconds. I then stop at a light for 60 seconds. Last, I travel at 12 m/s for 120 seconds. How much distance (in total) did I travel in my morning commute?

Let's divide the problem in more parts.

First part:

v = 18 m/s

t = 60 s

s = v*t = 1080m

Second part:

v = 0 m/s

t = 60s

s = 0m

Third (and last) part:

v = 12 m/s

t = 120 s

s = v*t = 1440m

Let's do the sum of the spaces:

1080m + 0m + 1440m  = 2520m

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

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