Water drips from the nozzle of a shower onto the floor 2.45 m below. The drops fall at regular intervals of time, with the first drop striking the floor at the instant the third drop begins to fall. Assume that air resistance is negligible. (a) How long does it take for the water drop to fall from the nozzle to the ground?
(b) What is the height of the second drop (from the floor) when the first drop strikes the floor?

this is a good question! i'll do some research and come back when i have the answer!

c) up is the direction the magnetic force is acting on the charge.

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