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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 2 - Motion in a Straight Line > Two trains travelling on the same track are approaching each other with equal speed of 40m/s. The drivers of the trains begin to decelerate simultaneously when just ` 2.0 km apart. Assuming deceleration to be uniform and equal the value to the deceleration to barely avoid collision should be .

Two trains travelling on the same track are approaching each other with equal speed of 40m/s. The drivers of the trains begin to decelerate simultaneously when just ` 2.0 km apart. Assuming deceleration to be uniform and equal the value to the deceleration to barely avoid collision should be .

A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 s is x and the covered in the first 20 s is y then.