The block below is at rest on the ground with a vector drawn that shows its weight.
How would you complete the vector diagram showing another vector that results in zero net force, and what is the conventional name of that vector?
http://img48.imageshack.us/img48/150/hwbox2yz.jpg
2006-06-26 23:10:28 · 5 answers · asked by kp.eric 2 in Science & Mathematics ➔ Physics
Add up one opposite vector (going up). In physics, they call it NORMAL FORCE.
2006-06-26 23:16:44 · answer #1 · answered by mikej 2 · 0⤊ 0⤋
There are two methods to understand the vectors. 1. Graphical method 2. Analytical method. In the first method, just draw directed arrow as per the directions given the problem to a scale. Then apply laws of vectors to get the required answer. In the second method, one need not draw the diagrams to scale. A rough diagram will do. In this approach, concepts in mathematics(trigonometry etc;) are applied to solve the problem.
2016-03-27 05:41:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
When a block rests on a surface, gravity pulls the block down, causing it to put a force on the surface. However the surface puts a force (with equal magnitude and direction) on the block. This is called the Normal Force. In this case the normal force cancels out gravity, so the block does not accelerate. Draw a line of equal length from the surface up.
A common mistake is that the normal force is always equal to gravity, or always cancels out gravity, this is not true!! The Normal force is called "normal" because it is perpendicular (another word for normal) to the surface. If the block was on an incline, or if there was someone pulling the block with a rope on an angle, the normal force would be smaller. So do not think that the normal force is always equal and opposite to gravity, watch out for that because they will try to trick you on tests.
2006-06-27 04:14:31 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Draw a vector vertically up with equal length. This vector being equal but opposite to the vector representing the weight the net force becomes zero.
This force vector is called normal reaction force.
2006-06-27 00:37:31 · answer #4 · answered by Pearlsawme 7 · 0⤊ 0⤋
they are constant..-velocity and+acceleration
2006-06-26 23:20:13 · answer #5 · answered by gen 2 · 0⤊ 0⤋