Un objeto se suelta en caída libre desde una altura h y cae durante t segundos. ¿Cuál es la fórmula para calcular la velocidad del objeto justo antes de impactar el suelo?

Ex 2trim 4to

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others
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3rd Grade
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Hard
Salvador Limachi
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14 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
vf= -gt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ninguno
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Un objeto que se lanza con una velocidad inicial hacia abajo, qué sucede con su velocidad a medida que sigue cayendo ?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un objeto se lanza verticalmente hacia arriba con una velocidad inicial de 40 m/s. ¿Cuánto tiempo tardará en volver al punto de lanzamiento? (g = 9.81 m/s²)
a) 3.06 s
b) 4.08 s
c) 8.16 s
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