- #1

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## Homework Statement

If an object is being launched from the top of a staircase 1.31m high from a pipe 16cm long, at an angle of 60 degrees. Find where the object will land if the initial velocity is 5.442m/s.

## Homework Equations

dx = 2v1^2sinθcosθ / g

dy = vyΔt+1/2gΔt^2

dx = vxΔt

## The Attempt at a Solution

I found the components to be

vx = 2.721

vy = 4.713

then i just used these in the two methods

the answers should both be the same, but the dx i got from both was very different

Am i doing something wrong? which one would be the correct answer?

Also, for the first method, i put 120 degrees as negative as it is below my reference point, or it would give me a neg. distance.