(Solved): A 2,00kg. block slides on a smooth horizontal surface. The block hits a spring at a speed of 4.00(m) ...

A

. block slides on a smooth horizontal surface. The block hits a spring at a speed of

and compresses the spring 20 cm before coming to rest. Using the work-energy theorem from chapter 6 , find the force constant

of the spring. You will not receive credit if you use conservation of mechanical energy concepts from chapter 7 (

points) A system of two blocks connected by a lightweight rope is released from rest where

and

. The initial height of the

block is

meters. Use the principle of conservation of mechanical energy (chapter 7) to find the speed at which the

block will strike the ground. Ignore friction and the mass of the pulley. Show all work and equations for complete credit (

points)