Question

1.) A block with a mass of 2 kg is held at rest against a spring that has been compressed 30 cm. The spring constant is 750 N/m. It moves uphill and comes to rest. There is only friction on the hill and the coefficient of kinetic friction is 0.3. What is the final vertical height the block reaches on the hill? 2.) A block of mass 2.5 kg is attached to a spring that has a spring constant of 450 N/m. The block is compressed a distance of S cm. a) What is the speed of the block when the spring returns to the equilibrium position? Assume no friction. b) What is the speed of the block when the spring returns to the equilibrium position if there is friction between the block and the floor? The coefficient of kinetic friction is 0.35.

          1.) A block with a mass of 2 kg is held at rest against a spring that has been compressed 30 cm. The spring constant is 750 N/m. It moves uphill and comes to rest. There is only friction on the hill and the coefficient of kinetic friction is 0.3. What is the final vertical height the block reaches on the hill?

2.) A block of mass 2.5 kg is attached to a spring that has a spring constant of 450 N/m. The block is compressed a distance of S cm.
a) What is the speed of the block when the spring returns to the equilibrium position? Assume no friction.
b) What is the speed of the block when the spring returns to the equilibrium position if there is friction between the block and the floor? The coefficient of kinetic friction is 0.35.

Added by Deanna L.

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