a wooden box of dimensions 50cm x 30cm x 20cm is kept on the ground of the mass of the box is 30 kg find the pressure exerted by the box on the ground ​

1 pa

explanation :

pressure = volume ÷ mass

50×30×20 = 30000 = 30m

30m ÷ 30kg = 1

units for pressure = pascals

so pressure = 1 pa

0.2pascal

Explanation:

when the box is on the ground,

Then Force= weight

F=mg, which is

F= 30*10=300N

and also the area

Area= 50*30=1500cm^2

Therefore

Pressure =Force / Area

Pressure = 300/1500 = 3/15 =0.2pascal

a sonic boom is a loud boom that breaks the sound barrier

explanation: