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nekit [7.7K]
3 years ago
9

88. A child pulls a cart to the left along a rough surface. Which one of the free body diagrams correctly depicts all the forces

acting on the carrito?

Physics
1 answer:
Oksana_A [137]3 years ago
6 0

Answer:

Eje x

           fr- F = m a

eje y    

           N-W =0

Explanation:

Para este ejercicio, debemos usar la segunda ley de Newton, donde se necesita fija un sistema de referencia el mas usado es un sistema horizontal y vertical para los ejes x e y  

en el adjunto puede ver el diagrama de cuerpo libre correcto,  

las fuerza son

Eje x

           fr- F = m a

eje y    

           N-W =0

la ecuacion para la fuerza de roce es

          fr = my N

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