a 50 g particle that can move along the x-axis experiences the net force fx=2.0t2n, where t is in s. the particle is at rest at t = 0 s.

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

You can melt ice by applying pressure because the solid/liquid line has a slope.

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?