Question

The pressure due to atmosphere is $1.013\times {10}^5$Pa. Find the force exerted by the atmosphere on the top surface of a table $2m$ long and $1m$ wide.

• A. $2.026\times {10}^{5}N$
• B. $2.026\times {10}^{6}N$
• C. $2.026\times {10}^{7}N$
• D. $2.026\times {10}^{8}N$

Answer 1

The correct option is A $2.026\times {10}^{5}N$

Force applied by atmosphere $=$ atmospheric pressure $\times$ ares of table
$F=P\times AF=1.013\times {10}^5\times (2\times 1)=2.026\times {10}^{5}N$