F2 = 125 N %3D 3 20% 60° 45° 60° F = 400 N %3D

8. Consider a 50-N weight suspended by two wires as shown. If the magnitude of vector F, is 35 N, find the angle a and the magnitude of vector F2. 60 50

PHY 210 Problems September 11 2013 1. Determine the resultant (R) of the two forces F₁ and F2, knowing y = 10° and = 15°. +y Y F₁ = 40N Ф F₂ = 35N T +x T

iv) Three 0.5 N pulling forces are applied from a common point with one on the +x axis. If the angle between each subsequent force vector is 30 degrees, what is the magnitude of the balancing force? a. 1 N b. 1.366 N c. 0.433 N d. 1.5 N

1. There are four forces acting on a pole, one points north, one points south, one points east, and the last one points west. Suppose that the initial magnitudes of these forces are all equal, at which direction you should increase the force magnitude so that the equilibrant force will point at NW?  2. The direction of the body being accelerated by an applied force must the same as the direction of the applied force. This is one of the premises of what law of motion?

6. If FB = 570 N and FC = 740 N, Determine the magnitude of the resultant force acting on the flag pole. Determine the co-ordinate direction angle 'a' and 'b' and 'y' symbols of the resultant force. Reference of symbols attached below

3. Use vector components to find the magnitude and direction of a force vector needed to balance the forces of 400 N @ 145 degrees and 400 N @ 260 degrees.

1. Find the central force necessary to make a parti- cle describe the lemniscate r2 = a² cos 20, where a is a constant.

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