QUICK QUESTION!!** PIC INCLUDED* Suppose that a box is being towed up an inclined plane as shown in the figure. Find the force w needed to make the component of the force parallel to the inclined plane equal to 2.5 lb. Give answer in component form.

Question

anonymous · Answer

We will need that figure to know exactly what is being asked.

anonymous · Answer

Here is a picture!

anonymous · Answer

Does anyone know how to solve it D=

turingtest · Answer

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turingtest · Answer

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turingtest · Answer

the component parallel to the plane is the magnitude of the force W time the cosine of the angle between the force and the plane, which is 30-15=15degrees

anonymous · Answer

Wait but the angle given says 33 degrees?

turingtest · Answer

sorry, good eye

turingtest · Answer

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anonymous · Answer

ohokkk

anonymous · Answer

but how would you get the component form..... like what exactly do i solve for? w?

turingtest · Answer

yes

anonymous · Answer

mhm, okay but how do you know what you have to minus 33 with 15?

turingtest · Answer

we want the angle between the ramp and the force
the ramp is at an angle of 15 deg to the horizontal
the force is at an angle of 33 deg to the horizontal
therefore the angle between the force and the ramp is 33-15deg

anonymous · Answer

Oh okay cool, so how can you set it up to get W?cos 18 = 2.5lbs/w..?

turingtest · Answer

start with
cos(theta)=F/W   where F is the component parallel to the plane
we set theta=18 and F=2.5
now yuo can solve for W

turingtest · Answer

cuz it's a right triangle...|dw:1352584629296:dw|