1. El ascensor del edificio de María tiene una masa de 250 Kg. En un momento determinado suben tres personas, cuyas masas son; 60kg, 80kg y 100 kg. Si la fuerza del motor es de 500 Kp, hallar la aceleración de subida.
2. Si una caja de manzana tiene una masa 120 kg, entonces su peso en la Luna es de:
(gravedad en la luna 1,6 m/s2)
3. Las unidades de la velocidad en el S. I. son:
4. José tiene dos masas de 12 Kg y 20 Kg, si le aplica la misma fuerza a ambas masa, la que tendrá mayor aceleración será la de:
5. Luis tiene una polea móvil, hallar la fuerza que debe aplicar para levantar un cuerpo de 150 N. (la imagen es de esta pregunta)
6. Un disco acanalado capaz de girar libremente alrededor de un eje fijo que pasa por su centro, se llama:
7. La parte de la física que estudia el movimiento y el reposo de los cuerpos, sin considerar las causas que lo producen, se denomina:
8. El desplazamiento es una magnitud:
9. La avioneta de Juan recorre 2940 Km en 2 h, entonces, su rapidez en m/s es:
10. Una carretilla es un ejemplo de una palanca de:
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1. El ascensor del edificio de María tiene una masa de 250 Kg. En un momento determinado suben tres...
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