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The force created by the object is 3.75 Newton.
Given
Mass of the object (m) = 1250 grams
Convert 1250 grams to kilograms by dividing it by 1000.
Mass (m) = 1.25 kg
Acceleration of the body (a) = 3
From Newton's second law we know
By Substituting in the above equation we get
Force = 1.25 x 3
Force = 3.75
It can also be written as force = 3.75 N
Hence Force created by the body is 3.75 Newton.
To know more about Force refer
Let k be the scale factor relating two similar prisms 
and 
, such that for corresponding parts of prisms and (for heights, in particular) we have 
. In our case 
.
For surfaces area we have
.
So, the right answer is 4:25 (choice B)
For surfaces area we have
So, the right answer is 4:25 (choice B)