delfam said:so how would i find 30 degrees, do I use the laws of sine or cosine
http://quarknet.fnal.gov/toolkits/ati/vectors.htmlTo add only two vectors, use the law of cosines. Draw the vectors head to tail. Then the resultant is the other side of the triangle.
c² = a² + b² - 2 ab cos C,
where a, b, and c are sides and angle C is opposite side c.
A force is a push or pull that can cause an object to accelerate or change its motion. It can be represented by a vector, which has both magnitude and direction.
Newton's Laws of Motion are three fundamental principles that describe the behavior of objects in motion. The first law states that an object will remain at rest or in uniform motion unless acted upon by an external force. The second law explains how the acceleration of an object is related to the force applied to it. The third law states that for every action, there is an equal and opposite reaction.
Mass is the amount of matter in an object, while weight is the force exerted on an object by gravity. Mass is measured in kilograms, while weight is measured in Newtons (N).
Vectors help us understand forces by representing them graphically with arrows. The length of the arrow represents the magnitude of the force, and the direction of the arrow represents the direction of the force. This allows us to visualize and analyze how multiple forces are acting on an object.
Balanced forces are forces that are equal in magnitude and opposite in direction, resulting in no change in an object's motion. Unbalanced forces are forces that are not equal and cause an object to accelerate in the direction of the net force. In other words, balanced forces result in equilibrium, while unbalanced forces result in a change in motion.