Q. A train travels with a speed of 20 m/s, starts going slow to it’s relative speed. If it takes 10 seconds to stop, then find the value of acceleration of that train ?

• A. 2 m/s² retardation
• B. 4 m/s² retardation
• C. 6 m/s² retardation
• D. 2 m/s retardation

Correct Answer: A