Un autocar que circula a 81 km/h frena uniformemente con una aceleración de -4,5 m/s2.
1 answer:
Answer:
a)
b) imagen adjunta
Explanation:
a) Primero debemos hacer la conversión de 81 km/h a m/s, esto es 22.5 m/s.
Ahora, usando la ecuacion cinemática, en un movimiento acelerado tenemos:
Queremos encontrar la posición hasta detenerse, osea vf = 0.
b) Para este caso el gráfico se encuentra adjunto.
Espero que te sirva de ayuda!
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• for the mass on the left,
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Now, the right-hand mass has an initial upward velocity of , but we're now treating down as the positive direction. As it returns to its starting position, its speed
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