(1) 1.031*10^5pa(1atm) what does pa and atm mean?
(2) A wooden block is of 20 kg . The length , breadth and height of the woodnen block are 5m , 2 m and 1 m, respectively . What are the minimum and maximum pressure exertedby the block, respectively ?
The answer is maximum pressure = 2002*1= 100pa
minimum pressure = 2005*2=20 pa
But how 20 pa and 100 pa comes I cannot understand

Dear student,

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure.
It is defined as one newton per square metre.

atm means atmospheric pressure which means force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area).

For remaining question kindly post in separate thread

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