Question

A block of weight 5kgf and dimensions 5cm * 2cm *1 rests on a table in three different positions with its base as (i) 5cm *2 cm (ii) 2cm * 1cm (iii) 1 cm *5 cm . Calculate the maximum and minimum pressure in S.I units exerted by a block on its base​

Answer 1

Answer:

Pressure is the force per unit area. So, P=F/A

Thus, minimum surface area (5cm×10cm) will give the maximum pressure and maximum area (20cm×10cm) will give the minimum pressure.

So, P

max

=

50×10

−4

2g

N/m

2

and P

min

=

200×10

−4

2g

N/m

2

Thus,

P

max

P

min

=50/200=1/4