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The engineer of an intercity train observes a rock slide blocking the train's path 2 1 0 . 0 m ahead and activates the train's

The engineer of an intercity train observes a rock slide blocking the train\'s path

210.0

m ahead and activates the train\'s emergency brakes. The train decelerates uniformly at

1.6

/

2

for

12.10

s before reaching the rock slide. What is the speed with which the train reaches the rock slide?

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