A body of mass 1 kg moves with a velocity 5 m s-1. A force is applied on it for 1 ms such that its velocity is increased to 7 m s-1. The force applied on the body is ________N.
Question
A body of mass 1 kg moves with a velocity 5 m s-1. A force is applied on it for 1 ms such that its velocity is increased to 7 m s-1. The force applied on the body is ________N.
Solution
Para resolver este problema, sigamos los siguientes pasos:
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Determinar el cambio en la velocidad (Δv): Donde es la velocidad final y es la velocidad inicial.
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Calcular la aceleración (a): La aceleración se puede calcular usando la fórmula: Donde es el tiempo durante el cual se aplica la fuerza. Dado que :
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Aplicar la segunda ley de Newton para encontrar la fuerza (F): La segunda ley de Newton establece que: Donde es la masa del cuerpo y es la aceleración.
Por lo tanto, la fuerza aplicada sobre el cuerpo es de 2000 N.
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