Question

A car of mass 1000kg moving with a speed 18mk/h on a horizontal road collides with a horizontally mounted spring of spring constant 6.25 × 10³N/m

1. What do you mean by Spring constant.

2. What is the maximum compression of the spring?

Answer 1

1. Spring constant is the force required to stretch the spring by a unit distance.

2. \(\frac{1}{2}\)mv² = \(\frac{1}{2}\)kx², 18km/h = 5m/s.

x = 2m.