Posted by Anonymous on .
A cart of mass 223 g is placed on a frictionless horizontal air track. A spring having a spring constant of 10.20 N/ m is attached between the cart and the left end of the track. When in equilibrium, the cart is located 11.0 cm from the left end of the track. If the cart is displaced 4.20 cm from its equilibrium position, find
(a) the period at which it oscillates

physics 
Elena,
T=2•π•sqrt(m/k)= 2•π•sqrt(0.223/10.20)= …