A cannon is rigidly attached to a carriage,which can move along horizontal rails but is connected to a post by a large spring, initially unstretched and with force constant
k=2.00×104N/m, as shown in Figure
P9.70. The cannon fires a
200−kg projectile at a velocity
of 125 m/s directed 45.0o above the horizontal.
Determine the maximum extension of the spring.![1865269_b211543494b74efd86a1383790cb5143.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/1865269_b211543494b74efd86a1383790cb5143.png)