Imagine that Dan and Ned are standing on top of a tower facing in the opposite direction to each other.The height of the tower is 19.6m.Dan throws a stone at 1m/s and Ned throws the stone at 4m/s simultaneously. Assuming that they threw the stones horizontally, calculate:A. Time taken by the velocity vectors to become perpendicular to each other.B. The horizontal distance between the two stones when their velocity vectors are perpendicular.C. Time taken by the displacement vectors to become perpendicular to each other.Note: Ignore air resistance and take g(acceleration due to gravity)= 10m/s^2

Pradeep , 7 Years ago

Grade 12