In the system of two blocks and a spring shown below, blocks 1 and 2 are connected by a string that passes over a pulley. The initially unstretched spring connects block 1 to a
rigid wall. Block 1 is released from rest, initially slides to the right, and is eventually
brought to rest by the spring and by friction on the horizontal surface.
Which of the following is true of the energy of the system during this process?" DS
(5 Points)
Block 1
k
0000000
Block 2
O
The total mechanical energy of the system is conserved.
The potential energy lost by block 2 is greater in magnitude than the potential energy gained by the spring,
The potential energy lost by block 2 is less in magnitude than the potential energy gained by the spring.
The energy lost to friction is equal to the gain in the potential energy of the spring.
The total mechanical energy of the system increases.