A spring scale reads 20. Newtons as it pulls a 5.0-kilogram mass across a table. What is the magnitude of the force exerted by the mass on the spring scale?
1 Answer
Aug 11, 2017
I'll assume there is no friction between the mass and the table.
If this is the case, then by Newton's third law of motion, the mass exerts a force of
If the spring scale exerts a force of
#20# #"N"# on the mass, then the mass exerts a force of#20# #"N"# on the spring scale (which is in the opposite direction).
