HELP PLEASE ! Friction on a slope (1 Viewer)

calebwhitaker199 · Mar 17, 2016

Q) Calculate the amount of work needed HORIZONTALLY to push your dragster up a 10 degree slope for 20m.
F is the force to get the dragster to start to move.

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Silly Sausage · Mar 17, 2016

Haven't done this in a while so..

$W_x=mgdcos\theta$
$(0.6N)(20m)(cos100)=-2.08J$

edit: nvm I thought F was friction

InteGrand · Mar 17, 2016

Silly Sausage said:
Haven't done this in a while so..

$W_x=mgdcos\theta$
$(0.6N)(20m)(cos100)=-2.08J$

$\noindent Wait, why is it $\cos 100^\circ$? Shouldn't it be $10^\circ$?$

Silly Sausage · Mar 17, 2016

InteGrand said:
$\noindent Wait, why is it $\cos 100^\circ$? Shouldn't it be $10^\circ$?$

Yep, my bad.

HELP PLEASE ! Friction on a slope (1 Viewer)

calebwhitaker199

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Silly Sausage

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InteGrand

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Silly Sausage

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