Question

an object is projected with a velocity of 20 metre per second making an angle of 45 degree with horizontal the equation for the trajectory is h=Ax -Bx² where it is height exercise until distance A and B are constants the ratio of A:B is

Answer 1

your ans for this question is 2√2:1 for A:B

Answer 2

compare this equation

h=xtanθ-gx²/2u²cos²θ

h=Ax-Bx²

A=tanθ

B=g/2u²cos²θ

A/B=(tanθ)(2u²cos²θ)/g

=2u²sinθcosθ/g

=2×20²sin45°cos45°/10

=2×400×1/√2×1/√2/10

=40m