In mechanics, a force is that which causes a change in velocity or, if you prefer, that which causes an acceleration. When more than one force acts on an object it is the net force that is important. Since force is a vector quantity, use geometry instead of arithmetic when combining forces.
Quick Answer. A crawling sensation felt on the skin may be caused by a condition called morgellons, according to WebMD. Common symptoms of morgellons include feeling like bugs are crawling on the skin, burning, itching and stinging sensations. In some cases skin sores may appear as well.
Other symptoms include the feeling that something is crawling on the skin, itchiness, pins and needles, or a burning sensation. Causes. There are many possible causes of skin that is sensitive to touch, and it may range from simple sunburn to a serious disease. Here are the possible causes: Overexposure to the sun - This causes a first degree to second degree burn that makes your skin sensitive to light touch.