
Resultant Force
What is the resultant force on the pole, if horse A exerts a force of 350 N at an angle of 48 degrees N of East, horse B exerts a force of 560 N at an angle of 37 degrees N of West, and horse C exerts a force of 200 N at an angle of 87 degrees N of East

A person and cage are suspended from pulley; Find force exerted on rope
(NOTE: In each of the three ropes, the tension force is the same at all points of the rope, on each side of the pulley.) You should find that the total upward force is 9R, and the total downward force is given as W =639 nt.
Step 3.

The Effect of Height on a Normal Force
At the bottom, where the track has a radius of curvature R, the car has a speed V and she feels 25% heavier than her actual weight (that is, Fn = 1.25 Fg, where Fn is the normal force the seat exerts on her).

High School Freshman Physics Practice Test: Tension, acceleration, velocity etc.
Newton's third law states that when a first body exerts a force F1 on a second body, the second body simultaneously exerts a force F2 = −F1 on the first body. This means that F1 and F2 are equal in magnitude and opposite in direction.

equilibrium readings of scales
That's correct, but don't forget that the spring scale also exerts a force on the iron mass. The reading of the spring scale is in fact precisely this force (up to conversion factors if e.g. the scale is calibrated to show mass instead of weight).

Classical Mechanics on Objects
the weight of the box or the total force which resists its motion.
5.

A Discussion On Newton's Second Law of Motion
Its engines generate a drive force of 4100 N, due west,while the wind exerts a force of 800 N, due east, and the water exerts a resistive force of 1200 N due east. What is the magnitude and direction of the boats acceleration?

Torques in equilibrium on a leaning ladder.
Find P, the force the top edge exerts against the bar.
Physics notes:
Note 1.
The bar in equilibrium requires that 'net force=0' and also 'net torque=0 about any axis'. This solution is for an axis at the lower end of the bar.
Note 2.

F, m, wt are found. Work done by difference forces is found.
While holding the car off the ground, each students exerts an upward force of 400 N. (a) What is the mass of the car in kilograms? (b) What is its weight in pounds?