Question

A bucket containing water depth 15 cm kept in a lift which is moving upwards with acceleration of 2g. The pressure of the bottom of the bucket is

• A. $10gdyne{cm}^{-2}$
• B. $2gdyne{cm}^{-2}$
• C. $40gdyne{cm}^{-2}$
• D. $45gdyne{cm}^{-2}$

Answer 1

The correct option is D $45gdyne{cm}^{-2}$

Pressure at the bottom of the bucket

is = mass $\times$ 3g

= Density of water $\times$ Area $\times$ h $\times$ 3g

= 1gm/cc $\times$ $1{cm}^2\times 15cm\times 3\times 10$

= 45g dyne/${cm}^2$.