1.

find the ratio of the pressure exerted by a black of 400n when placed on a table top along its two different sides with dimensions 20cm x10cm and 10cm x 15cm

Answer»

In the first case-Force applied=400NDimensions=20cm x 10cm =0.2m x 0.1mArea=0.2x0.1m²=0.02m²Pressure applied=(400N)/(0.02m²) =20000Pa

In the second case-Force applied=400NDimensions=10cm x 15cm =0.1m x 0.15mArea=0.1x0.15m²=0.015m²Pressure applied=(400N)/(0.015m²)=26666Pa

Ratio= 20000Pa:26666Pa = 10000:13333



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