science

From a top a building is 20 m tall, you launch a projectile up at an angle of 30 degrees to the horizontal. You launch at 80 m/s find a) the total time in flight, b) the hightest point reached above the building, and c) distance between the landing point and the base of the building.

I need help with the equations to get me started.

break the initial velocity into vertical and horizontal components.

Then, use the vertical component in the height equation to find the time of flight. Use the quadratic equation.

For the max height, use the vertical velocity equation (velocity at the top is zero), find the time, then put that into the height equation.

For the distance, use the horizontal distance equation

I will be happy to critique your work.

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asked by randy

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