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## Homework Statement

1. A train moving at a speed of 30 m/s slows down to 10m/s in 30s. How far had the train gone before it's speed was reduced from 30m/s to 20 m/s?

## Homework Equations

D= Vi times T + at(squared) divide it by 2

## The Attempt at a Solution

None yet. Please help me with the solution