Question

Megan Ripinoe (#15) weighs 650 N is running forward at 8.1 m/s and moving upward 0.5 m/s when another player (#13) pulls on her jersey with a force of 500 N at an angle of 15 degrees below a backward pointing horizontal line (see the figure below). The pull is made for 0.12 seconds.

A) Player #13 applied a force of 500 N for 0.12 seconds, causing Megan to change her velocity.
B) Player #13 applied a force of 500 N for 0.12 seconds, causing Megan to maintain her velocity.
C) Player #13 applied a force of 500 N for 0.12 seconds, causing Megan to stop completely.
D) Player #13 applied a force of 500 N for 0.12 seconds, causing Megan to accelerate even faster.

Answer 1

The correct answer is option A, as applying a force for a period of time will change Megan Ripinoe's velocity according to the principles of Physics.

Step-by-step explanation:

The subject of the question is Physics, specifically concerning the concepts of force and motion. In this scenario, player #13 pulling on Megan Ripinoe's jersey with a force of 500 N at a downward angle for 0.12 seconds results in a change in Megan's velocity. This is because a force applied for a duration causes an acceleration according to Newton's second law of motion, ultimately affecting her velocity.

Given this understanding, the correct answer would be option A: Player #13 applied a force of 500 N for 0.12 seconds, causing Megan to change her velocity. This involves the principles of dynamics such as acceleration, force, and time, which are key elements in calculating changes in motion. To analyze these concepts accurately, one must consider both the magnitude and direction of the force, as well as the mass of the person involved.