Question

A cube of side 15cm and of weight 50N is placed on a table. Find the pressure exerted by it
in SI units. pls i need ans fast

Answer 1

Answer:

1st Formula

side of cube = 5 m

vol. = 5×5×5 m^3

area of base = 5×5 m^2

= 25 m^2

weigh = 50 kg.

gravity = 10 m/s^2

weight = m×a

= 50×10

=500 N.

pressure = Force / Area

= 500/25

= 20 Pa.

2nd Formula

pressure = mass/volume

mass =50 kg

volume of a cube =5^3=125 cubic meter

pressure =50kg/125 cubic meter

=0.4kg/cubic meter

Answer 2

F = 300 N A = 30 cm2 = (30/ 100 x 100) m2 = 30 x 10-4 m2 = 100000 = 105 PaRead more on Sarthaks.com - https://www.sarthaks.com/154569/calculate-the-pressure-in-pascal-exerted-by-force-of-300-acting-normally-on-an-area-of-30-cm