initial KE=finalKE+springPEgained
1/2 m6^2=1/2 m vf^2+1/2 (2000)(.15^2)
without knowing mass m, you can't do much here.
vf^2=36-2000(.15^2)/m
The horizontal surface on which the block slides is frictionless. The speed of the block before it touch the spring is 6.0 m/s. How fast is the block moving at the instant the spring has been compressed 0.15 m? The spring constant, k = 2000 N/m
1 answer
1 answer