BIO Bones and Muscles. A physical therapy patient has a forearm that weighs 20.5 N and lifts a 112.0-N weight. These two forces are directed vertically downward. The only other significant forces on this forearm come from the biceps muscle (which acts perpendicular to the forearm) and the force at the elbow. If the biceps produces a pull of 232 N when the forearm is raised 43.0° above the horizontal, find the magnitude and direction of the force that the elbow exerts on the forearm. (The sum of the elbow force and the biceps force must balance the weight of the arm and the weight it is carrying, so their vector sum must be 132.5 N, upward.)
BIO Bones and Muscles. A physical therapy patient has a forearm that weighs 20.5 N and lifts a 112.0-N weight. These two forces are directed vertically downward. The only other significant forces on this forearm come from the biceps muscle (which acts perpendicular to the forearm) and the force at the elbow. If the biceps produces a pull of 232 N when the forearm is raised 43.0° above the horizontal, find the magnitude and direction of the force that the elbow exerts on the forearm. (The sum of the elbow force and the biceps force must balance the weight of the arm and the weight it is carrying, so their vector sum must be 132.5 N, upward.)
BIO Bones and Muscles. A physical therapy patient has a forearm that weighs 20.5 N and lifts a 112.0-N weight. These two forces are directed vertically downward. The only other significant forces on this forearm come from the biceps muscle (which acts perpendicular to the forearm) and the force at the elbow. If the biceps produces a pull of 232 N when the forearm is raised 43.0° above the horizontal, find the magnitude and direction of the force that the elbow exerts on the forearm. (The sum of the elbow force and the biceps force must balance the weight of the arm and the weight it is carrying, so their vector sum must be 132.5 N, upward.)
If the magnitude of the resultant force is to be 500 N, directed along the positive y axis, determine the magnitude of force F and its direction θ
the following example is given:
vector1 =+(60.0N)i+(103.9N)j
vector2 =+(75.2N)i−(27.4N)j
vector 3=−(100.0N)i+(0.0N)j
vecor net =+(35.2N)i+(76.5N)j
Convert this net force to polar coordinates; that is, find the total vector magnitude and angle.
If three forces, 1 , 2 , and 3 , are in equilibrium, what is the relationship between the sum of the first two forces and the third force? Write your answer as an equation.
onsider the vector = −(51.7 N)i + (63.9 N)j
(a) Convert this value to polar coordinates (magnitude and angle).
(b) When converting this to polar coordinates, what answer does your calculator give
you for the angle of the vector? Explain whether this is correct or not (including the correct angle if applicable).
There are two numbers located on a plane represented mathematically by. A = (85 N, 180 N). And the other vector quantity is B = 140N with an angle of minus 10 degrees, Applying the method of the Law of Sines and Cosines, Determine: a) the magnitude and direction of the resultant force and b) the direction of the balancing force.
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