EXPERIMENT: DETERMINING REACTION TIME The reaction time can be determined by using the formula:
where d is the distance the meter stick falls before being caught and g is the acceleration due to gravity. The formula can be rearranged to solve for time, t.
A ruler will be dropped between a person’s fingers. [A person drops a meter stick between another person’s finger and they catch it.]

The distance the ruler falls before the person catches the ruler will help determine their reaction time.

Record the distance the ruler falls. Then use the distance to determine the reaction time.

Trial one. [The ruler is caught at 48 centimeters]

Trial two. [The ruler is caught at 41 centimeters]

Trial three. [The ruler is caught at 29 centimeters]

Trial four. [Trial four] [The ruler is caught at 41 centimeters]

Trial five. [Trial five] [The ruler is caught at 40 centimeters]

Trial six. [Trial six] [The ruler is caught at 42 centimeters]

it becomes positively charged by charging it

cant without the picture! ?

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

answer///terminator or twilight zone;