Question

a body starting from rest along a straight line is traveling with an acceleration of 6 metre per second square then the distance travelled by it in third second is

Answer 1

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Answer 2

distance travelled in 3rd second = u + a[ n - 1/2 ]
distance travelled = 0 + 6 [ 3 - 1/2 ]
                              =6 [5/2 ]
                               =15 metres.
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