A light ray in air enters and passes through a block of glass. What can be stated with regard to its speed after it emerges from
1 answer:
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Answer:
Vx = 15V
Explanation:
To find the speed of the third car you take into account that the distance that they travel is the same. Only time is different in one second. Mathematically you have:
you equal the first and second equation obtain the time t:
then, you can equal the third and first equation:
hence, Vx = 15V
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TRANSLATION:
Para encontrar la velocidad del tercer automóvil, tenga en cuenta que la distancia que recorren es la misma. Solo el tiempo es diferente en un segundo. Matemáticamente tienes:
iguala la primera y segunda ecuación obtiene el tiempo t:
entonces, puedes igualar la tercera y primera ecuación:
por lo tanto, Vx = 15V