Question

Consider the equations
P=lim∆s→0F∆S and P1-P2=rhogz.
In an elevator accelerating upward
(a) both the equations are valid
(b) the first is valid but not the second
(c) the second is valid but not the first
(d) both are invalid

Answer 1

Answer:

Consider the equations

P=lim∆s→0F∆S and P1-P2=rhogz.

In an elevator accelerating upward

(a) both the equations are valid✔

(b) the first is valid but not the second

(c) the second is valid but not the first

(d) both are invalid