Plz solve it and Plz explain A particle is thrown from ground in a vertical plane XY at an angle 450 with horizontal. the
projection is Origin and the particle Crosses a point P with $n. —m
72 Find the i nitial velocity of projection
e.
—4) 10 rn/S
(B) 20
(C) 30 mjs
(D) 40 m,'S
