A box, compressing a spring by 4 m, is loaded and ready. Moments later the 8.0 kg box has been launched with

a speed of 10.0 m/s across a frictionless surface. Find the spring constant of the spring used at the beginning of

the problem.

Question

Ernie

13 October, 18:11

+2

Answers (1)

Know the Answer?

Gustavo Thomas · Answer 1

50 N/m

Explanation:

Elastic energy = kinetic energy

EE = KE

½ kx² = ½ mv²

½ k (4 m) ² = ½ (8.0 kg) (10.0 m/s) ²

k = 50 N/m

A box, compressing a spring by 4 m, is loaded and ready. Moments later the 8.0 kg box has been launched witha speed of 10.0 m/s across a frictionless surface. Find the spring constant of the spring used at the beginning ofthe problem.