Question

Plz see the Attachment and ans with proper explaination​

Answer 1

The maximum speed can be seen while travelling from A to B, i.e, 10m/s

While travelling from A to B, the time taken can be written as ED.
= 420 - 40
= 380 s or 6.3 mins (approx)

Therefore this speed of 10m/s is maintained for 6.3 minutes, after which it decreases



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