# GPE lost on a slope (pls help thanksss)Watch

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#1
Im doing an isaac physics question where i need to state the symbolic equation for the GPE lost from a block sliding down a slope.
I have no number values,
The weight is W,
the angle is alpha (symbol)
the distance on the slope is l

I worked out the horizontal length to be LCos(alpha)

I cant use 9.81 because its a decimal but it tells me that my answer is wrong
Help?
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1 year ago
#2
Gpe is mgh so WhL where h is Lsinalpaha
Think you're messing up by trying to add in gravity, but since W is the weight not mass it already includes gravity W=mg
1
#3
(Original post by meredith2017)
Gpe is mgh so WhL where h is Lsinalpaha
Think you're messing up by trying to add in gravity, but since W is the weight not mass it already includes gravity W=mg
Ahh tysm
And yeah that was my mistake, again, thank you so much!!
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