Two 50 g blocks are held 30 cm above a table. As shown in Figure P14.59, one

Question:

Two 50 g blocks are held 30 cm above a table. As shown in Figure P14.59, one of them is just touching a 30-cm-long spring. The blocks are released at the same time. The block on the left hits the table at exactly the same instant as the block on the right first comes to an instantaneous rest. What is the spring constant?

30 cm FIGURE P14.59