Projectile motion :( (1 Viewer)

[Prawnchip]

A horizontal drainpipe 6 m above sea level empties stormwater into the sea. If the water comes out horizontally and reaches the sea 2 m out from the pipe, find the initial velocity of the water, correct to 1 decimal place. Let g be 10 ms−2 and neglect air resistance.

plss help

 

[Kurosaki]

Do you know how to find the Cartesian equation of a projectiles path?

 

[Prawnchip]

yeah.......? but how does finding the cartesian help? can you explain pls

 

[aDimitri]

Well it passes through the points (0,6) and (2,0). Sub them in and solve for V (theta is 0 because horizontal projection).

 

[photastic]

Its good to draw the projectile, simply equating the horizontal and vertical components to find V.

P.S. First timer so idk if i'm right/wrong.