el que me pueda ayudar le doy las muchas gracias y yo poderle ayudar en otros temas todo a cambio por fisica muchas gracias

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

See the attachment and solve question 5th