1. Two particles A and B start moving simultaneously along the line joining them in the same direction with acceleration 1m/sec2 and 2m/sec2 and speeds 3m/sec and 1m/sec respectively.Initially A is 10 m behind B.What is the minimum distance between them?
2.From an elevated point a stone is projected vertically upwards ,When the stone reaches a distance "h" below ,its velocity is double of what it was at a height "h" above A.What is the greatest height achieved by the particle?
3. A point mass starts moving in a st line with const. ACC. After time "to" the ACC. changes in direction becomes -ve both magnitude remains the same.Determine the time "t" from the beginning of motion in which the pt mass returns to its initial position?
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