An object of mass 6.5 kg is released at point A, at a height of 2.0 m above the ground. It slides to the bottom of the 30°incline and eventually collides with a horizontal massless spring with the spring constant 720 N/m. If the horizontal surface and the incline is frictionless, then (a) What is the speed of the object at the bottom of the incline? (b) What is the maximum distance the block compresses the spring, before coming to rest? (c) How muck distance would the spring be compressed if %50 energy is lost to friction.

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