train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the draw-bar locomotive is 80kN
Calculate
a. The force required for constant speed
b. The force that causes the acceleration
c. The acceleration
2 answers
I'm having trouble visualizing a train with a mass of 120 mg. Even toy trains are heavier than that.
Okay please assist me with the calculations