7.Question 7A downhill skier is descending a snow-covered mountain. The skier steps off of a level region of the mountain and onto a steep slope. The skier begins to accelerate rapidly downhill on the slope. What force is causing the skier to accelerate downhill?1 pointThe downhill ramp force that is the sum of the skier's weight and the support force exerted on the skier by the snow-covered slope.The skier's weight.The support force exerted on the skier by the snow-covered slope.The support force exerted on the snow-covered slope by the skier.
Question
7.Question 7A downhill skier is descending a snow-covered mountain. The skier steps off of a level region of the mountain and onto a steep slope. The skier begins to accelerate rapidly downhill on the slope. What force is causing the skier to accelerate downhill?1 pointThe downhill ramp force that is the sum of the skier's weight and the support force exerted on the skier by the snow-covered slope.The skier's weight.The support force exerted on the skier by the snow-covered slope.The support force exerted on the snow-covered slope by the skier.
Solution
Para responder a esta pregunta, es importante entender las fuerzas que actúan sobre el esquiador mientras desciende por la pendiente. Vamos a analizar cada opción:
-
La fuerza de la rampa cuesta abajo que es la suma del peso del esquiador y la fuerza de soporte ejercida sobre el esquiador por la pendiente cubierta de nieve.
- Esta opción es incorrecta porque la fuerza de la rampa cuesta abajo no es la suma del peso del esquiador y la fuerza de soporte. La fuerza que hace que el esquiador acelere cuesta abajo es una componente del peso del esquiador.
-
El peso del esquiador.
- Esta opción es correcta. La fuerza que causa que el esquiador acelere cuesta abajo es la componente del peso del esquiador en la dirección de la pendiente. El peso del esquiador se puede descomponer en dos componentes: una perpendicular a la pendiente (que es contrarrestada por la fuerza de soporte) y otra paralela a la pendiente (que causa la aceleración cuesta abajo).
-
La fuerza de soporte ejercida sobre el esquiador por la pendiente cubierta de nieve.
- Esta opción es incorrecta porque la fuerza de soporte actúa perpendicularmente a la pendiente y no causa la aceleración cuesta abajo.
-
La fuerza de soporte ejercida sobre la pendiente cubierta de nieve por el esquiador.
- Esta opción es incorrecta porque se refiere a la fuerza que el esquiador ejerce sobre la pendiente, no a la fuerza que causa la aceleración cuesta abajo.
Por lo tanto, la respuesta correcta es: El peso del esquiador.
Similar Questions
A 75.0-kg skier takes 20.0 s to reach a speed of 25.0 𝑚 𝑠⁄from rest while descending a uniform 16.0° slope, as shownin the diagram to the right. The coefficient of frictionbetween the skier and the hill is a.bc x 10-d (only providethe values for a, b, c, and d). 16.0o
Consider the skier on a slope shown in Fig.2. Her mass including equipment is 70 kg.Calculate her acceleration if friction is known to be 45 N.
This column chart represents the skier's energy at a single point on their journey down the slope.Analyse the column chart to identify which point on the skier's journey it represents.The skier is at the top of the slope, standing stillThe skier is near the top of the slope and has just started skiing downThe skier is halfway down the slopeThe skier is at the bottom of the slope and moving at very high speedI'm not sure
What type of energy does a skier stopped at the top of a hill have because of his or her position?A.Gravitational potential energyB.Heat energyC.Chemical energyD.Kinetic energySUBMITarrow_backPREVIOUS
A skier glides 2.4 m up a hill angled 30° above the ground. His speed slows from 8.2 m/s to 5.3 m/s. Determine the coefficient of friction of the hill with the skier. use grade 12 knowledge
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.