Which of the following statements are IMPOSSIBLE? Choose all that apply A. The p

Question

Which of the following statements are IMPOSSIBLE? Choose all that apply A. The parkedmotorcycle had 0 kg·m/s of momentum B. The truck had 0J of KE and 697 kg·m/s of momentum C. A ball movingin a circle had 0 N of net force acting on it D. A box had anacceleration of 0 m/s2 while a net force of 501 N actedon it E. Jill exerted200 N of force due west on a cart. As a direct result, the cartexerted 200 N of force due west upon Jill F. A spoon exertsa greater gravitational force upon Jupiter than Jupiter exerts uponit. Which of the following statements are IMPOSSIBLE? Choose all that apply A. The parkedmotorcycle had 0 kg·m/s of momentum B. The truck had 0J of KE and 697 kg·m/s of momentum C. A ball movingin a circle had 0 N of net force acting on it D. A box had anacceleration of 0 m/s2 while a net force of 501 N actedon it E. Jill exerted200 N of force due west on a cart. As a direct result, the cartexerted 200 N of force due west upon Jill F. A spoon exertsa greater gravitational force upon Jupiter than Jupiter exerts uponit. B. The truck had 0J of KE and 697 kg·m/s of momentum C. A ball movingin a circle had 0 N of net force acting on it D. A box had anacceleration of 0 m/s2 while a net force of 501 N actedon it E. Jill exerted200 N of force due west on a cart. As a direct result, the cartexerted 200 N of force due west upon Jill F. A spoon exertsa greater gravitational force upon Jupiter than Jupiter exerts uponit.

Explanation / Answer

EDIT: About option C... For a body to move in a circle, it must possess an unbalanced forceC (centripetal force) which causes acceleration of magnitudev2/r. using the formula F=ma=mv2/r if F=0, then either r= (not possible) or v=0 ( but the ballis still moving in a circle, so it must have velocity) Therefore, F>0 and C) A ball moving in a circle had 0 Nof net force acting on it is Impossible.... I am sorry that i didn't quite realize that this was an impossiblestatement, i was constantly thinking that with uniform speed, thereis no force..... As for the confusion about part E: The reactionary force is always directed opposite... Newton's thirdlaw says so..... I'm pretty sure this statement is impossible.... Good luck ! B. The truck had 0 J of KE and 697 kg·m/s of momentum--Impossible For momentum to be present, the body must have velocity, but if thebody has velocity, it inherently possesses kinetic energy. D. Abox had an acceleration of 0m/s2 while a net force of 501 N acted on it--Impossible since F=ma, as long as net force is not zero, the body willhave acceleration. E. Jill exerted 200 N of force due west on a cart. Asa direct result, the cart exerted 200 N of force due west upon Jill--Impossible Reactionary forces are always equal and opposite. F. A spoon exerts a greater gravitational force uponJupiter than Jupiter exerts upon it.--Impossible Gravitational forces are always equal and opposite.

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