Question

Which of the following is the proper combination for force?
A) kg
B) metre/s2
C) kgxmxm/sec
D) kgxm/sec
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Answer 1

The proper combination of force will be kg $m^{2}$/ sec (option C)

From Newton's second law of motion, we know that force the rate of change of momentum of a body is equal to the force applied.

When we write Newton's second law in a formula we have:

Force = Mass x acceleration

So from this, we can find the proper combination of force.

The unit of mass will be kg

While the unit of acceleration will be $m^{2}$/ sec

When we will find the production of these we will get the unit of force as

Force = kg x  $m^{2}$/ sec

Force = kg $m^{2}$/ sec

Therefore, the proper combination of force will be kg $m^{2}$/ sec.