Calculating Spring Compression from Toy Car Collision

AI Thread Summary
To calculate the spring compression from a toy car collision, the relevant parameters are the car's mass (0.079 kg), spring constant (69 N/m), and initial velocity (1.10 m/s). The elastic potential energy (EPE) formula, EPE = (1/2)kx^2, can be equated to the kinetic energy of the car, given by KE = (1/2)mv^2, to find the compression distance. The discussion emphasizes the need to ensure units are consistent, specifically checking that energy is measured in Joules. Participants express confusion about applying the equations correctly and seek clarification on the relationship between mass, velocity, and spring compression. Understanding these concepts is crucial for solving the problem accurately.
mksnider77
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Homework Statement


A toy car with a mass of m=.079 kg crashes into a spring with constant k=69 N/m. If the car was going v=1.10 m/s, then how far will the spring compress?


Homework Equations


I think you could use the equation for Elastic Potential Energy but I'm not sure what to do with the mass or the velocity...

EPE= kv^2/2


The Attempt at a Solution


I really just don't know... I'm stuck and help would be greatly appreciated!
 
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Check the units on your EPE equation. Are you getting Joules (energy)?
 

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