A body of mass m is suspended from a spring with spring constant k and the spring is stretched 0.1. If two identical bodies of mass m/2 are suspended from a spring with the same spring constant k, how much will the spring stretch? Explain your answer.
The first case is when the mass is just pulling the spring downwards while the second case is the 2 m/2 masses connected to a pulley which pulls the spring horizontally.
Why isn't the answer 0.1m? Don't the forces still add up to the same as the first case?
1 answer
A body of mass