A 0.250-kg block resting on a frictionless, horizon- tal surface is attached to a spring whose force constant is 83.8 N/m as in Figure P15.15. A horizontal force SF causes the spring to stretch a distance of 5.46 cm from its equi- librium position. (a) Find the magnitude of SF. (b) What is the total energy stored in the system when the spring is stretched? (c) Find the magnitude of the acceleration of the block just after the applied force is removed. (d) Find the speed of the block when it first reaches the equilibrium position. (e) If the surface is not frictionless but the block still reaches the equilibrium position, would your answer to part (d) be larger or smaller? (f) What other information
A 0.250-kg block resting on a frictionless, horizon- tal surface is attached to a spring whose force constant is 83.8 N/m as in Figure P15.15. A horizontal force SF causes the spring to stretch a distance of 5.46 cm from its equi- librium position. (a) Find the magnitude of SF. (b) What is the total energy stored in the system when the spring is stretched? (c) Find the magnitude of the acceleration of the block just after the applied force is removed. (d) Find the speed of the block when it first reaches the equilibrium position. (e) If the surface is not frictionless but the block still reaches the equilibrium position, would your answer to part (d) be larger or smaller? (f) What other information
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