Motion in A Straight Line

Question: If a train travelling at 72 kmph is to be brought to rest in a distance of 200 metres, then its retardation should be

1) 20 \[m{s^{ - 2}}\]

2) 10\[m{s^{ - 2}}\]

3) 2 \[m{s^{ - 2}}\]

4) 1 \[m{s^{ - 2}}\]

Solution:

Explanation: Explanation

non-uniform-motion

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