Question

For questions 1 through 7 fill in the square next to all correct answers. A given problem may have more than one correct answer. Each correctly bubbled answer will receive two points. There are 13 correct answers in this section and only the first 13 filled in answers will be graded. There is no partial credit. 1. The net impulse acting on a boxed shaped present is pointing to the left. Which of the following quantities must also point to the left? 1) The momentum of the present. 2) The net external force on the present. 3) The displacement of the present. 4) The velocity of the present. 5) The acceleration of the present.

Answer 1

1) The momentum of the present.

2) The net external force on the present.

Explanation:

When considering the net impulse acting on a boxed-shaped present pointing to the left, the momentum of the present must also point in the same direction. This is a fundamental principle derived from the definition of momentum, which is the product of an object's mass and its velocity. As momentum is a vector quantity, it not only depends on its magnitude but also on its direction. In this scenario, with the net impulse directed to the left, the momentum necessarily follows suit, aligning with the impulse's direction.

Moreover, according to Newton's second law of motion, the net external force acting on an object is equal to the rate of change of its momentum. In this context, if the net impulse is pointing to the left, it signifies an external force acting on the present in that direction. Therefore, the net external force on the present must also point to the left.

Understanding the interplay between impulse, momentum, and external forces provides insights into the dynamics of the present's motion. These principles are foundational in classical mechanics and form the basis for analyzing and predicting the behavior of objects in motion.