A 0.225 kg block attached to a light spring oscillates on a frictionless, horizontal table. The oscillation amplitude is  A = 0.120 m  and the block moves at 3.25 m/s as it passes through equilibrium at  x = 0.   Find the spring constant, k (in N/m). Calculate the total energy (in J) of the block-spring system. Find the block's speed (in m/s) when x = A/2 ____m/s.

A 4-kg object rests on a horizontal frictionless surface. It is in a position such that it is compressing a spring a distance 13.4 cm. If the object is released, the object leaves the spring at a speed of 19.6 cm/s. What is the spring constant of the spring? Express your answer in N/m, to at least one digit after the decimal point. plz use g = 9.8

A block of mass m = 2.00 kg is attached to a spring of force constant k = 550 N/m as shown in the figure below. The block 4.60 cm to the right of equilibrium and released from rest. is pulled to a position x; = x = 0 m (a) Find the speed the block has as it passes through equilibrium if the horizontal surface is frictionless. 0.73 How much energy is stored in the spring when it is at equilibrium? m/s Need Help? x = x₂ (b) Find the speed the block has as it passes through equilibrium (for the first time) if the coefficient of friction between block and surface is = 0.350. інк 0.500 X The force of friction causes an increase in the internal energy of the system and a decrease in the total mechanical energy. m/s Read It Watch It

A spring hangs vertically from a ceiling. The spring constant of the spring is k=15 N/m. A 2kg object has been attached to the spring and the spring has already come to its new equilibrium. Someone pulls the object down by 5cm and releases it at time t = 0s. The spring and object begin to oscillate under simple harmonic motion. Find the total energy of the system, the maximum kinetic energy, the maximum potential energy, and the positions where the maximum energies occur.  Answers: 0.01875 J, 0.01875 J