Hint 1 Hint 2 A mass is placed on a frictionless, horizontal table. A spring ( = 155 N/m), which can be stretched or compressed, is placed on the table. A 4.5-kg mass is anchored to the wall. The equilibrium position is marked at zero. A student moves the mass out to x = 7.0 cm and releases it from rest. The mass oscillates in simple harmonic motion. Find the position, velocity, and acceleration of the mass at time t = 3.00 s. x(t = 3.00 s) = 2.12 X 2.26 cm v(t = 3.00 s) = cm/s a(t = 3.00 s) = cm/$2 Question Help: Message instructor Submit