Question: A 4 0 , 0 0 0 kg train car starts from rest and coasts down a 0 . 5 7 slope for a distance

A 40,000 kg train car starts from rest and coasts down a 0.57 slope for a distance of 25 m. A bumper with a spring constant of3000 kN/m stops the car. (a) What is the speed of the car at the bottom of the incline? (b) How much will the bumper be compressed?

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