A81 kg man is riding on a 40 kg cart traveling at a speed of 2.3 m/s. he jumps off with zero horizontal speed relative to the ground. what is the resulting change in the cart's speed, including sign?

Explanation:

In this case we have to use the Principle of conservation of Momentum:

This principle says that in a system  the total momentum is constant if no external forces act in the system. The formula is:

Where:

Mass of the first object.

Mass of the second object.

Initial velocity of the first object.

Initial velocity of the second object.

Final velocity of the first object.

Final velocity of the second object.

In this problem we have:

Observation: Is because the system has the same initial velocity.

First we have to find ,

We can rewrite it as:

Replacing with the data:

We found the final velocity of the cart, but the problem asks for the resulting change in the cart speed, this means:

Then, the resulting change in the cart speed is:

its c i just checked it

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation