Which is greater; a force of 10n or a force of 5 lbs?

First you want to turn that 5lbs into a force using the equation:

Weight(N) = mass(kg) × gravity(m/s^2)

That equation is called the weight force equation.

The conversion number for pounds to kilograms is 2.2 so to find how many kg are in 5lbs you divide 5 by 2.2 to get 2.27kg

Then we multiply 2.27kg by 9.81m/s^2 to get 22.30N

So, we can conclude that a force of 5lbs is greater than a force of 10N

One pound of force is equivalent to about 4.45 newtons.

So 5 pounds of force is roughly 22.2 newtons.
That's more than 10 newtons.