Two identical 0.50-kg carts, each 0.10 m long, are at rest on a low-friction track and are connected by a spring that is initially at its relaxed length of 0.50 m and is of negligible inertia. you give the cart on the left a push to the right (that is, toward the other cart), exerting a constant 4.5-n force. you stop pushing at the instant when the cart has moved 0.55 m . at this instant, the relative velocity of the two carts is zero and the spring is compressed to a length of 0.30 m. a locking mechanism keeps the spring compressed, and the two carts continue moving to the right. by what amount do you change the system's kinetic energy?

Ithink it’s cancer risk

Ibelieve the answer is b

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction