Convenient Weight Marker
When ya give this spring scale a tug, the weight marker will slide to the appropriate weight and stay there until ya move it back to zero. This will help ya out when you’re weighing items that are a little on the heavy side. Load, weigh, unload, check your weights…it’s really simple.
This Thing Sure Is Durable
This mechanical scale was built to last. Inside the corrosion resistant housing you’ll find stainless steel components that are attached to the stainless steel weighing hook and hanger. Whether ya want to use this as a fishing scale, hunting scale, bow scale, or just a great general purpose scale, you’re good to go with this Halsun.
Balances measure mass.
Scales calibrated in kilograms are only done so for convenience, because we often use them to weigh in Earth standard gravity, and what we really want is the mass, but we cheat by using the scale instead of the balance.
Newtons aren’t a very popular unit in common use outside the study of physics…unfortunately, and so is the distinction of mass vs weight unpopular for one to understand.
For this reason, a 1 kg reading on a spring scale refers to 9.8 Newtons of tension, and it scales proportionally. This refers to the TENSION force with which the spring scale pulls on something.
If used to measure friction force, it is only done so indirectly. Because the target object is, in a good experiment, pulled at constant velocity, forces on it add up to zero, and as such, the tension need fully oppose the friction, should the scale be pulled horizontally and should the surface be flat.
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