Question
Asked Nov 2, 2019

A freight train has a mass of 1.1 ✕ 107 kg. If the locomotive can exert a constant pull of 7.4 ✕ 105 N, how long does it take to increase the speed of the train from rest to 74 km/h? 

check_circleExpert Solution
Step 1

Given information:

Mass of the train (m) = 1.1 × 107 Kg

Force the locomotive can exert (F) = 7.4 × 105 N

Final velocity that is needed to be achieved (v) = 74 kmph

Step 2

According to Newton 2nd law the forced exer...

F = ma
Where "a" is the acceleration of the locomotive.
7.4 X 105
0.0672 m/s2
a
1.1 x107
т
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F = ma Where "a" is the acceleration of the locomotive. 7.4 X 105 0.0672 m/s2 a 1.1 x107 т

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Physics

Newtons Laws of Motion

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