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A 3kg mass sliding on a frictionless horizontal surface with a speed of 3m/s eventually collided...

A 3kg mass sliding on a frictionless horizontal surface with a speed of 3m/s eventually collided with a spring that is attached to a rigid wall. The spring has a spring constant of 3N/m. The masses will compress the spring, and eventually get pushed back away from the wall.

A) what will the final speed of the be after it gets pushed back outward? Explain

B) By what length is the spring maximally compressed?

C) What will the magnitude of the acceleration of the block be when its speed is zero?

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