Question 1 a) A ball rolls horizontally off a cliff at a speed of 30 m/s. It takes about 7 seconds for the ball
to hit the ground. Calculate the height of the cliff and the horizontal distance travelled by the ball.

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?