A6-column table with 1 row. the first column labeled number of washers has entry 2. the second column labeled initial velocity v subscript 1 (meters per second) has entry 0.13. the third column labeled final velocity v subscript 2 (meters per second) has entry 0.36. the fourth column labeled time to travel 0.25 meters t subscript 1 (seconds) has entry 1.92. the fifth column labeled time to travel 0.5 meters t subscript 2 (seconds) has entry 2.61. the sixth column labeled acceleration a = startfraction (v subscript 2 minus v subscript 1) over (t subscript 2 minus t subscript 1) endfraction (meters per second squared) has entry empty. the acceleration of the car with the data in the table above would be m/s2. if the applied force were cut in half, what do you predict the acceleration would be? m/s2

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

well clustered together.

points close on a scatter diagram

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.