- #1

1irishman

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## Homework Statement

A ball rolls off an incline at a velocity of 22m/s. The angle of the incline is 32deg, and the height of the incline from the floor is 9m. Assume no air resistance.

## Homework Equations

vf^2=vi^2+2ad

d=vit+1/2at^2

## The Attempt at a Solution

I figured i should attempt to separate the motion of the ball into the x and y dimensions first so this was my attempt:

y motion

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22sin32*=11.7m/s

d=9m

vf=17.7m/s

a=-9.8

t=0.74

x motion

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vi=vf=18.7m/s because 22cos32=18.7m/s

t=0.74s

the answer is 11m, but i don't know how to get this answer...please help?