Match the following. screw wheel barrow
Inclined plane forceps
third class lever staircase
wedge nut/bolt
second class lever pulley in a flag stand
fixed pulley string roller
wheel and axle knife​

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

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.