A 15 N block is hung from a spring scale. What is the weight of the block in air?
To find the weight of the block in air, we'll need to understand a couple of concepts. Weight is the force exerted on an object due to gravity, and it is measured in newtons (N). The weight of an object can be calculated using the equation:
Weight = mass x acceleration due to gravity
The standard acceleration due to gravity is approximately 9.8 meters per second squared (9.8 m/s²) on Earth.
In this case, we are given the force applied to the block, which is 15 N. This force is measured using a spring scale. The spring scale works by measuring the force applied to it and converting it into units of newtons.
Since the force applied to the block (15 N) is the same as its weight, we can conclude that the weight of the block in air is 15 newtons.