A 930bullkg car strikes a huge spring at a speed of

Question

Compute all parts of given question:

Question: A 930•kg car strikes a huge spring at a speed of 18•m/s (Fig. 11-50), compressing it 6.0 m.

Part A: What is the spring constant of the spring?

Part B: How long does the spring take to stop the car?

I need help to find the spring constant of the spring.