--------------------------------(adsbygoogle = window.adsbygoogle || []).push({});

Question:

--------------------------------

A 1.6 kg block is pushed into a spring with spring constant of 1.0 x 10^3 N/m. The spring is compressed a distance of 2.0 cm [0.02m], and the block is released from rest in the horizontal direction.

(a) Calculate the speed of the block as it passes through the equilibrium position at x = 0, if the surface is frictionless.

(b) How far does the block travel before coming to rest? Assume a constant friction force of 4.0 N and the same initial conditions as before.

--------------------------------

Formula I used for (a)

v = √[k/m (A^2 - x^2)]

v = √[1000/1.6 (0.02^2 - 0^2)]

v = 0.5m/s

--------------------------------

Not sure about (a), But I have no clue as to (b)..

Should I used the work formula?

Work (J) = Force x distance

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

Dismiss Notice

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: Springs: Speed when released & distance traveled.

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