The most common liquid on planet earth is water
Correct answer: B). Hypertrophy
Muscles hypertrophy is a process, which involves an increase in the size of skeletal muscles. There is two type of hypertrophy, these are sarcoplasmic hypertrophy, which aims to increase muscle glycogen storage and the other one is myofibrillar hypertrophy, which increases myofibril size.
Resistance training is a type of physical training, which aims to increase the muscles strength by making muscles resistance against a force or a work. The different type of resistance training includes free weight, resistance bands and weight machines on which workout is done to build resistance.
Let
V the speed of the girl per step
v the speed of the escalator per step
L the length between ground and floor in number of steps
V*60+v*60=L => V+v=L/60
V*90-v*90=L => V-v=L/90
By adding the equations V+v=L/60 and V-v=L/90 we get:
2V=L(3+2)/180
V=5L/360
V = L/72
Time to climb (in steps) with v=0 (escalator standing still) is:
V*t=L
t = L/V
t = L/(L/72)
t =72 steps
The girl will count 72 steps.
Explanation:
hope this helps you dear friend.