A body of mass 200 g, attached to a light elastic spiral spring, is held on a smooth slope as shown in the figure below. The length of the unloaded spring is 40 cm and a force of 1.4 N is required to extend it by 10 cm.
Figure 1: Body on elastic spiral spring
What is the spring's elastic constant?
What is the energy of the spring-body system when the body is at the top of the slope?
If the body is released from the top of the slope, what is the elastic energy of the spring when the body is in the middle of the slope?
What is the kinetic energy of the body when the body is in the middle of the slope?
What is the speed of the body in the middle of the slope?
.
.
