Answer to Question #214996 in Mechanics | Relativity for white

Question

A cart is moving on a horizontal track. A heavy bag falls off the cart and moves straight down relative to the cart. Select the correct description of the system of choice.

The system consists of the cart. External forces are exerted on the system, changing the horizontal momentum system.

The system consists of the cart and the bag. External forces are exerted on the system, changing the horizontalt momentum of the system.

The system consists of the cart. No external horizontal forces are exerted on the system, so the horizontal momentum of the system is constant.

The system consists of the cart and the bag. No external horizontal forces are exerted on the system, so the horizontal momentum of the system is constant.

Answer 1

NO. The system consists of the cart. External forces are exerted on the system, changing the horizontal momentum system.

NO. The system consists of the cart and the bag. External forces are exerted on the system, changing the horizontalt momentum of the system.

NO. The system consists of the cart. No external horizontal forces are exerted on the system, so the horizontal momentum of the system is constant.

YES. The system consists of the cart and the bag. No external horizontal forces are exerted on the system, so the horizontal momentum of the system is constant.