Physics lab: (vectors) Note: Only consider the last two questions in the last pa
ID: 1276128 • Letter: P
Question
Physics lab: (vectors)
Note: Only consider the last two questions in the last page that labeled under conclusion.
Below are 2 force vectors: the 2 Newton force is pointing 60 degree above the positive x-axis. and the 1 Newton force is pointing 45 degree above the negative x-axis as shown. What is the vector sum (the resultant) of the two vectors shown? A radar station detects a helicopter at the position 250 km, 40.0 degree from the radar base What is the height of the helicopter above the ground? To experimentally verify the vector law, of addition To demonstrate that a system in equilibrium has no net force on it (i c . the vector sum of the forces must be zero).Note that in each of these methods we obtained the same vector c in terms of both the magnitude and the direction. Also, Notice that you are always free to translate (shift) a vector in space, so long at you don't change its magnitude or direction Translation of a vector does not change it. Then if you want to calculate the un a + b-c you now have two equation," elevation gauge" with "sight tube "Force table Known masses Unknown mass At your station will be a piece of equipment called a "force table".Explanation / Answer
sources of error:
measuring elevation
measuring masses
measuring angle
remedy: use better equipments with more precision or take repeated readings and take their average this will reduce the error upto some extent.
2. practical application:
for example,you car is stuck in mud in not a straight direction i.e. you need the car to move in a straight direction to get it out of mud but the car is not aligned that way.
what you can do is take two people and apply two forces in such a way that their resultant will align with the direction you want your car to move. this is a good practical example.
second example:
The launching of a stunt person from a cannon in a circus is a prime example. To achieve a certain angle of launch with a certain velocity, an initial velocity must be applied to the person, but countering that is the force of gravity. So, the initial velocity is one leg of the parallelogram and the other leg is the force of gravity.