



2.41 A Simple Reaction-Time Test. A meter stick is held graphs fo vertically above your hand,...
A meter stick is held vertically above your hand, with the lower end between your thumb and first finger. On seeing the meter stick released, you grab it with these two fingers. You can calculate your reaction time from the distance the meter stick falls, read directly from the point where your fingers grabbed it. If the measured distance is 18.3 cm, what is the reaction time?
Problem 1: Reaction Time Figure below shows a simple technique for measuring your reaction time. A friend holds a meter stick vertically, with thumb and forefinger at one end as shown. You then position your thumb and forefinger at the other end, being careful not to touch the meter stick. Your friend releases the stick, and you try to pinch it as soon as possible after you see it begin to fall. After multiple trials you find that the meter...
Phy 1010 – Chapter 2 Activity: Measure your reaction time. Requires a ruler and a friend to help you. Hold the index finger and thumb of your dominant hand about 2.5 cm apart, and have a friend hold a ruler vertically in the space between your fingers and thumb. Note the position of the ruler relative to your index finger. Your friend must release the ruler, and you must catch it (without moving your hand downward) as quickly as you...