Three forces of magnitudes 1n, 3n and 2n are acting at angles 19.
of 0°, 90° and 120° with +ve x-axis respectively, then the
resultant will act along the
a. positive x-axis
b. positive y-axis
c. negative x-axis
d. negative y-axis

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?