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A mass-spring system composed of a 250g air-track glider attatched to a spring is being timed...

A mass-spring system composed of a 250g air-track glider attatched to a spring is being timed by a student as it oscillates with SHM. The student finds that 10 oscillations take 6.50s. What is the spring constant K?

The 250g glider is now removed and another glider of mass m is attached to the spring. The new glider is pulled, released and the system oscillates according to x(t)=0.04cos(8.4t).

a)What is the period of the new glider?

b)By comparing the new period with previous period for the 250g glider state whether the mass m of the new glider is larger or smaller than 250g and why.

c)What is the max speed v max of this new system?

d)Wgat us tge velocity at t=2sec? (state magnitude and direction)

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