Question

a particle whose speed is 50m/s moves along the line from A(2,1)to B(9,25).find its velocity in the form of aî+bj

Answer 1

Displacement will be final position - initial position
9î - 2î + 25j cap - j cap
=7î + 24j cap
Speed = distance /time
50=25/time (use distance formula which u studied in 10th)
Time = 1/2 seconds
Velocity =displacement /time
V =2î + 24j cap / (1/2)
V=2 (2î +24j cap)

Answer 2

Hope ot helps. mark as brainliest