Fluid Mechanics Viscosity Question 191
Question: A cork is submerged in water by a spring attached to the bottom of a bowl. When the bowl is kept in an elevator moving with acceleration downwards, the length of spring
Options:
A)Increases
B)Decreases
C)Remains unchanged
D)None of these
Show Answer
Answer:
Correct Answer: B
Solution:
Effective weight $ W’=m(g-a) $ which is less than actual weight mg, so the length of spring decreases.
BETA
