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Physics, 24.03.2021 17:50 Nathaliasmiles

1. Un proyectil se dispara con una velocidad inicial de 40 m/s formando un ángulo de 25 grados con respecto a la horizontal, asumiendo una gravedad de m/s^2, determinar :
a. El tiempo de subida y tiempo de bajada.
b. La altura máxima.
c. El alcance horizontal cuando la altura es máxima.
d. La velocidad con respecto al eje “Y” y “X”, cuando su altura es máxima.
e. Distancia total recorrida
2. Una esfera se lanza horizontalmente desde un techo ubicado a 5 metros de altura, realiza un
movimiento parabólico impactando a 4 metros sobre el eje horizontal, calcular la velocidad con
que fue lanzada la esfera asumiendo una gravedad de 10 m/s^2.
3. Una piedra se lanza horizontalmente con una rapidez de 15.0 m/s desde lo alto de un risco de
100 m de altura. ¿Cuánto tiempo tardará la piedra en caer al fondo del risco? Despreciar la
resistencia del aire.
4. Una pelota de golf se golpea y sale impulsada con una rapidez de 20 m/s a un ángulo de 45° con
respecto a la horizontal.
a) ¿Cuál es su posición cuando han transcurrido 0.4 s?
b) ¿Cuál es valor de velocidad horizontal a los 0.4 s?

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