Con la cinematica podemos encontrar la distancia recorrida antes de detenerse es 169,96 m
Parámetros dados
- velocidad del camión v= 100 km/h
Para encontrar
- La distancia para detenerse
El sistema internacional de medidas (SI) es el sistema que deben tener todas las unidades del ejercicio, este es el primer paso si se tiene una mezcla de unidades
v= 100 km/h ( 1000 m/1 km) ( 1 h/3600 s) = 27,78 m/s
La cinemática estudia el movimiento de los cuerpos, estableciendo relaciones entre la posición, la velocidad y la aceleración
v² = v₀² – 2 a x
Donde v y v₀ son las velocidades inicial y final, a la aceleración del cuerpo y x la distancia recorrida
En este caso como el vehículo se detiene su velocidad final es cero
0= v₀² – 2 a x
x =
Calculemos
x = 27,78² / 2 2,27
x = 169,96 m
En conclusión usando la cinematica podemos encontrar la distancia recorrida antes de detenerse es
x= 169,96 m
Aprender mas acerca de cinemática aquí:
brainly.com/question/11298125
Answer:
Horizontal Motion, and Vertical Motion.
Explanation:
The physical changes are you are breaking down the food u eat and the chemical changes are when the enzymes in your stomach break down the food that you have already eaten
Answer:
A) If the paintball stops completely the magnitude of the change in the paintball’s momentum is
B) If the paintball bounces off its target and afterward moves in the opposite direction with the same speed, the change in the paintball’s momentum is
C) A paintball bouncing off your skin in the opposite direction with the same speed hurts more than a paintball exploding upon your skin because of the strength exerted is twice than if it explodes.
Explanation:
Hi
A) We use the formula of momentum , so we have
B) We use the same formula above, then due we have a change of direction at the same speed, therefore the change in the momentum is the double so
.
C) The average strength of the force an object exerts during impact is determined by the amount the object’s momentum changes. therefore
, as we don't have any data about the impact time but we know momentum is twice, time does no matter and strength is twice too.