one US ton is 2000 lbs, thus 2/5 of that is just their product.
answer: 800 lbs
<span>It allows other scientists to check findings</span> is the most important reason to publish results as part of the scientific process.
Final velocity(v) = 32 m/s
Initial velocity(u) = 10 m/s
Using kinematic equation v = u + at,
32 = 10 + a(3)
32-10
--------- = a
3
a = 22
----
3
a = 7.3 m/s^2.
Hence acceleration of the roller coaster is 7.3 m/s^2.
Hope this helps!!