Ask Question
13 June, 04:38

A horizontal spring with spring constant 85 n/m extends outward from a wall just above floor level. a 9.5 kg box sliding across a frictionless floor hits the end of the spring and compresses it 6.5 cm before the spring expands and shoots the box back out. how fast was the box going when it hit the spring?

+1
Answers (1)
  1. 13 June, 07:19
    0
    Spring constant: 85N/m, 9.5kg box, compresses spring 0.035m.

    85N/m * 0.035m = 2.975N

    Use spring equation 1/2*k * (change in distance) ^ 2

    1/2*85N/m * (0.035m) ^ 2=0.052063J

    Now use kinetic equation:

    1/2*m*v^2

    0.052063J=0.5*9.5kg*v^2

    v = 0.1047 m/s
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A horizontal spring with spring constant 85 n/m extends outward from a wall just above floor level. a 9.5 kg box sliding across a ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers