Help with force!

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Help with force!

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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a) weight= force x sin (angle) b) against= force x cos (angle)
^ thanks!! i'll let you know what answers i get :)

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Other answers:

ok
weight = 139 force = 428 (both rounded of course)
hrm that is not correct.
1 Attachment
super huge numbers.
The sum of forces in the x-direc are the component of weight in the x and friction: F_x = W*sin(12) - F_friction The frictional force is 430. F_x is 0 since the car is not moving. Solve for W. W = 2068 lbs The sum of forces in the y-direc are the component of the weight in the y and the normal force: The sum of the forces in the y is 0 because the car is not sinking or floating F_y = F_Normal - W*cos(12) F_Normal = 2068 *cos(12) = 2023 lbs. ---this is the force the car exerts on the driveway.
ooki they give an example in the book. a) the magnitutde of the part of the force w that causes the car to roll down the driveway is |u|=component of w along u
aah, sorry I didn't see you had already posted :P
these last applies to the first too ;)
soo how does this look with my given numbers?
F_x = W*sin(18) - F_friction The frictional force is 450. F_x is 0 since the car is not moving. Solve for W. W = 1456 lbs The sum of forces in the y-direc are the component of the weight in the y and the normal force: The sum of the forces in the y is 0 because the car is not sinking or floating F_y = F_Normal - W*cos(12) F_Normal = 1456*cos(18) = 1385 lbs. ---this is the force the car exerts on the driveway.
the force is 1385 and the weight is 1456?
yay that's right :) thanks so much!!
(how do we do we find out w*w?)

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