A bucket contains water filled upto a height = 15 cm. The bucket is tied to a rope which is passed over a frictionless light pulley and the other end of the rope is tied to a weight of mass which is half of that of the (bucket + water). The water pressure above atmosphere pressure at the bottom is :

Question

A bucket contains water filled upto a height = 15 cm. The bucket is tied to a rope which is passed over a frictionless light pulley and the other end of the rope is tied to a weight of mass which is half of that of the (bucket + water). The water pressure above atmosphere pressure at the bottom is : (A) 0.5 kPa (B) 1 kPa (C) 5 kPa (D) None

Tardigrade Admin · Accepted Answer

Pressure = h ρ g text eff a = g / 3 g texteff= g - g / 3 =2 g / 3 ⇒ P =(0.15 × 1000 × 2 × 10/3) P =1 KPa

0.5 kPa

1 kPa

5 kPa

None

Pressure =hρg eff ​ a=g/3 geff​=g−g/3 =2g/3 ⇒P=30.15×1000×2×10​ P=1KPa

Pressure $= h ρ g_{eff}$
$a = g /3$
$g_{eff} = g - g /3$
$= 2 g /3$
$\Rightarrow P = \frac{0.15 \times 1000 \times 2 \times 10}{3}$
$P = 1 K P a$