A cart of mass 250 g is placed on africtionless horizontal air track. A spring having a springconstant of 9.0 N/m is attachedbetween the cart and the left end of the track. When inequilibrium, the cart is located 12 cm from the left end of thetrack. If the cart is displaced 4.3 cmfrom its equilibrium position, find the following values.
(a) the period at which it oscillates
s
(b) its maximum speed
m/s
(c) its speed when it is 14 cm from the left end of the track
m/s