5. Which of the following statements for this collision is correct? a) Only line

Question

5. Which of the following statements for this collision is correct? a) Only linear momentum is conserved. b) The red Pascar experiences the same magnitude of the change in linear momentum as the blue Pascar c) The blue Pascar exerts a force on the red Pascar but the red Pascar doesn't exert a force on the blue Pascar d) The blue Pascar exerts a larger force on the red Pascar than the red Pascar exerts on the blue Pascar e) The red Pascar exerts a larger magnitude of impulse on the blue Pascar than the red Pascar exerts on the blue Pascar f) The isolated system includes only the blue Pascar and the track since the red Pascar was not initially moving Questions 6-9 refer to the situation in which Planet Phi travels in elliptical orbit about Sun Omega as illustrated in diagram on the right. Assume that planet Phi moves counterclockwise in its orbit and that Sun Omega is significantly more massive than Planet Phi 6. Which position (s) of Planet Phi in its orbit indicate the maximum force the Sun Omega exerts on the planet. a) A b B c) C d) D e) All 4 positions. The sun exerts the same magnitude of force at all positions 7. As Planet Phi moves counterclockwise from position B to position D and then from position D to position B a) the planet moves at constant velocity throughout this entire orbit. b) the planet's kinetic energy increases as it moves from B to D and then decreases as it moves from D to B c) the planet's momentum decreases as it moves from B to D and then increases as it moves from D to B d) the planet experiences acceleration throughout this entire orbit. e) the planet experiences acceleration throughout this entire o 8. Sun Omega exerts what type of force on Planet Phi? b) gravitational a) tension c) normal d) drag e) friction. f inertial 9. Which of the following statements is false? a) The force exerted by Sun Omega on Planet Phi at Position D does zero work on Planet Phi b) The magnitude of the force exerted by Sun Omega on Planet Phi at any given position in Planet Phi's orbit could vary during different times in Sun Omega's life cycle as the mass of Sun Omega changes. c) The acceleration of Planet Phi at all positions is always directed toward Sun Omega. d) The forces exerted on Sun Omega and Planet Phi due to each other are an action-reaction pair e) The magnitude of the force exerted by Sun Omega on Planet Phi is greater than magnitude of the force exerted by Planet Phi on Sun Omega

Explanation / Answer

5.

Provide more information about the collision; There must be more info for this question which seems to be missing.

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6.

Position D is nearest to Sun Omega, so at this position, the sun omega exerts maximum force. This is because gravitational force is inversely proprotional to the square of distance between two bodies. So, the lesser the distance more is the force.

So cirrection option is d).

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7.

the planet's kinetic energy increases as it moves from B to D and then decreases as it moves from D to B. This is becasue its potential energy decreases from B to D, and to keep the mechanical energy constant, the kinetic energy increases which means the speed increases from B to D and and so does the momentum.

Similarly from D to B its potential energy increases, and to keep the mechanical energy constant, the kinetic energy decreases which means the speed decreases from D to B and so does the momentum.

So the correct option is b)

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8.

Sun omega exerts gravitational force.

So option b) is correct.

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9.

Sun Omega and the planet exert equal and opposite force on each other as per Newton's third law of motion.

So e) is false.

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This concludes the answers. Check the answer and let me know if it's correct. If you need any more clarification or correction, feel free to ask.....

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