Question

please answer this question

Answer 1

Answer:

Only no. 3 can be allowed in the vechical.

Explanation:

the capacity of truck =100kNm^2 =10,00,000pacals.

Lets calulate the pressure caused by each of the following :

1)

1000kg= 1000kgf of weight washing machine of area 800cm^2

first convert 1000kgf into KN =9.807kN

Area into m^2 = 0.08m^2

preasure=W/a

=12,25,87.5pascals

2)

W= 1000N= 1kN

A=0.0004m^2

P=W/a = 25,00,000 pascals

3)

w=100kgf=0.981kN

a=5m2

P=W/a= 196.2 pascals

4)

w = 5000N= 5kN

a = 500cm2 =0.05m2

p = W/a= 100 000 pascals

Thus, only no.3 can be allowed on the truck.