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Babynini
 one year ago
Help with force!
Babynini
 one year ago
Help with force!

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0a) weight= force x sin (angle) b) against= force x cos (angle)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0^ thanks!! i'll let you know what answers i get :)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0weight = 139 force = 428 (both rounded of course)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0hrm that is not correct.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The sum of forces in the xdirec 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 ydirec 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.

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0ooki 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

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0aah, sorry I didn't see you had already posted :P

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0these last applies to the first too ;)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0soo how does this look with my given numbers?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0F_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 ydirec 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.

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0the force is 1385 and the weight is 1456?

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0yay that's right :) thanks so much!!

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0(how do we do we find out w*w?)
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