MCQ Solution: Work Energy and Power
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) 49 N
2) 20. N
3) 5.0 N
4) 4.0 N
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) 49 N
2) 20. N
3) 5.0 N
4) 4.0 N