Physics, asked by sachintiwari428, 1 year ago

A body is projected with a certain speed at angles of projection of theta and 90-theta ,the maximum height attained in two cases are 20m,10m respectively.The maximum possible range is?

Answers

Answered by aristocles
106

maximum height of projectile is given by equation

H_1 = \frac{v^2 sin^2\theta}{2g}

H_2 = \frac{v^2sin^2(90-\theta)}{2g}

given here that

H_1 = 20 m

H_2 = 10 m

now if we divide two equations then we have

\frac{20}{10} = \frac{sin^2\theta}{sin^2(90-\theta)}

tan\theta = \sqrt2

now we have

sin^2\theta = \frac{2}{3}

now we have

H = \frac{v^2sin^2\theta}{2g}

20 = \frac{v^2*\frac{2}{3}}{2g}

maximum range is possible at 45 degree which is given by

R = \frac{v^2}{g}

now from the above equation we can say

R = \frac{v^2}{g} = 60 m

Answered by varmatippani50858
21

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