Car Trailers In N. Ireland A Car Is Hauling A 87 Kg Trailer, To Which It Is Connected By A Spring.?

A car is hauling a 87 kg trailer, to which it is connected by a spring.? - car trailers in n. ireland

The spring constant is 2100 N / m. The car accelerates with an acceleration of 0.26 m / s 2 ^ What is the distance of spring?