1. When a 0.80-kg mass is attached to a certain spring, the spring is stretched by 0.20 m. By how much will the same spring be stretched when a 1.20-kg mass is attached to it?

2.

A 0.60-kg mass (F. = 5.88/) is attached to Spring C (with spring constant k = 11NV/m). By how much is the spring stretched (i.e, what is Ax?)