Question

29 In part (a) of the figure, an air track cart attached
to a spring rests on the track at the position
Xequilibrium and the spring is relaxed. In (b), the
cart is pulled to the position Xstart and released.
It then oscillates about Xequilibrium. Which graph
correctly represents the potential energy of the
spring as a function of the position of the cart?
mm
mm
(a)
(b)
Xstart
Xequilibrium​

Answer 1

Answer:

The graph shows position as a function of time for two trains running on ... In part (a) of the figure, an air track cart attached to a spring rests on the track at ... In (b), the cart is pulled to the position xstart and released.