A train moving at 25 m/s brakes with a constant deceleration of 4 m/s squared. What distance does it travel before stopping?
Answer and explanation
Correct answer: C. 78.125 m
- Step 1: Use v squared = u squared + 2as with v = 0.
- Step 2: s = 625/(2 x 4) = 78.125 m.
Answer
78.125 m.
Why not the others: 156.25 m, 6.25 m and 39.062 m do not fit.
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