Agas flows along the x axis with a speed of v = 5x m/s and a pressure of p = 10x2 n/m2 , where x is in meters.
(a) determine the time rate of change of pressure at the fixed location x = 1 (i. e., for the particle currently at x=1).
(b) determine the time rate of change of pressure for a fluid particle flowing past x = 1. (you are fixed at x=1)
(c) explain without using any equations why the answers to parts (a) and (b) are different.

e) none of the above answers are correct

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

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.