(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two blocks A and B are connected by a spring of spring constant 1000N/m. Block A is 2kg and has a rightward velocity of 5m/s. Block B is 3kg and has a rightward velocity of 10m/s. When block B collides with block A, there is a maximum compressional force on the spring. What is the length of the spring x at the instant of maximum compression?

2. Relevant equations

W = 1/2kx^{2}

3. The attempt at a solution

Initial velocity of Block B = 10m/s

Velocity of Block B at the instant of collision = 0m/s

Change in kinetic energy = 1/2(3)(10)^{2}= 150J

150 = 1/2(1000)(x)^{2}

But my answer is different from the answer provided, can anyone tell me where did i go wrong? Thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Compression of spring

**Physics Forums | Science Articles, Homework Help, Discussion**