Answer:
Explanation:
F = ma and
We have F, we have m, but in order to solve for v, we need a.
30.0 = 3.00a so
a = 10.0 m/s/s. Plug that in for a in the second equation and solve for v:
so
v = 10.0(3.00) so
v = 30.0 m/s
Answer:106560 N
Given
Let Tension between 2 and 3 car be and between 3 &4 is
mass of freight car =37,000 kg
acceleration of car
is accelerating all freights behind 3
therefore
Thus
.-2.0
as at 80 friction it's a 360?
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