A mass is on an inclined plane with a length of 4 m and an angle of 30 degrees; the friction coefficient between the mass and the inclined plane is 0.25. The mass is initially halfway up the inclined plane and is thrown downward. What will be its speed at the bottom of the inclined plane and how much will it compress a spring (spring constant 100 N/m) which is just at the bottom of the inclined plane if we have a friction coefficient of 0.3 between the mass and the horizontal table where the spring rests? (Let's assume that the mass is 3 kg)

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A mass is on an inclined plane with a length of 4 m and an angle of 30 degrees; the friction coefficient between the mass and the inclined plane is 0.25. The mass is initially halfway up the inclined plane and is thrown downward. What will be its speed at the bottom of the inclined plane and how much will it compress a spring (spring constant 100 N/m) which is just at the bottom of the inclined plane if we have a friction coefficient of 0.3 between the mass and the horizontal table where the spring rests? (Let's assume that the mass is 3 kg)

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