Posted by **Cooper** on Thursday, November 17, 2011 at 8:33pm.

A 0.55-kg air cart is attached to a spring and allowed to oscillate.

If the displacement of the air cart from equilibrium is x=(10.0 cm)cos[(2.00 s ^-1)t + pi], find the maximum kinetic energy of the cart.

Find the maximum force exerted on it by the spring.