
#1
Feb2206, 09:58 PM

P: 12

A block of mass 0.5kg moving on a horizontal frictionless surface at 2.0 m/s collides with and sticks to a massless pan attached to the end of a horizontal ideal spring whose spring constan is 32 N/m.
a) Determine the function for x(t), the displacement from equilibrium position as a function of time. I got this to be x(t) = .25sin(8t) b) What is the period T, of the subsequent oscillations? I got the period to be .785 sec c) What is the kinetic energy of the mass 4.0 sec after it collides with the spring? I got this to be .997j d) What force is exerted by the spring on the block at t=1.2 sec? Which way is the block moving? Explain I got the force to be 1.334N ARE MY ANSWERS RIGHT, I ALSO SAID THAT Xo=0m when using my equation. 


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