Question

an object is projected with velocity u=(ai+bj) from ground.it has velocity (xi+yj) at h. value of h is

Answer 1

Answer:

b=2a

Explanation:

angleof projection theta=tan inverse vy/vx

=tan inverse b/a

tan theta =b/a______(1)

fromformula R=4H, cot theta=2H

tan theta=2______(2)

from both the equations 1 and 2

b=2a