jordan2875
18.12.2019 •
Physics
On the planet sulvania, a mountain with an elevation of 1410 feet is the highest peak on the east coast of a land mass. the summit of the mountain is the first place on the land mass to be lit by the rays of the sun.
how much sooner do the first rays of the sun touch the summit than the base of the mountain below, at sea level?
assume that one rotation of sulvania takes 24 hours and that the radius of sulvania is 2660 miles. a circle has radius 2660 miles. an arrow along the circumference points clockwise and is labeled rotation of sulvania. a sun is to the right of the circle, and the first rays from the sun form a straight line that touches point q on the circumference of the circle and then continues to point d. a radius of the circle extends from the center to point q, forming a right angle with the first rays. a second radius of the circle extends from the center to point p on the circumference of the circle and then is extended to point d. the angle between the radii is labeled theta. arc p q is labeled s. 2660 miles rotation of sulvania sun the first rays of the sun touch the summit about nothing minutes sooner than the base of the mountain below, at sea level.
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Ответ:
a) 35 sequndos b) M1 = 600m M2 = 875m
Explanation:
a)
Antes de que el otro móvil comience a moverse, el primer móvil ha viajado 5 segundos a una velocidad de 15 m / s.
5 segundos x 15 m / s = 75 metros.
Podemos establecer una ecuación con la información que conocemos. Juntos, en total, los dos recorren 1475 metros.
Voy a representar el tiempo como t. Un móvil ya ha recorrido 75 metros y hará otros 15 t. El otro aún no se ha movido y viajará 25t. Esos tres números se sumarán a 1475.
75 + 15t + 25t = 1475.
Resta 75 de ambos lados y suma términos similares de t: 40t = 1400
t = 35 segundos.
b)
Ahora tome la distancia recorrida por cada vehículo por separado y conecte 35 segundos para t.
Primer móvil: 75 + 15t = 75 + 15 (35) = 600m
Segundo móvil: 25t = 25 (35) = 875m
Usé un traductor para entender la pregunta y luego traduje lo que escribí. Lo siento si mi explicación no es clara.