Question

3.2: investigating collision forces (basketball vs. soccer ball)
background:
you roll a basketball and a soccer ball toward each other at the park.
here are the masses:

• basketball 0.6 kilograms
• soccer ball 0.4 kilograms

you give each ball the same gentle push so they roll toward each other and collide.
part 1: draw a model

• draw the basketball and soccer ball about to collide.
• show the force arrows on each ball
• equal length (same force strength)
• opposite directions
• show the resulting motion with different - sized velocity arrows
• larger arrow = bigger velocity change
• smaller arrow = smaller velocity change

(simple stick - figure style is fine! focus on the force direction and velocity change.)

Explanation:

Step1: Draw two balls

Draw a larger - sized circle to represent the basketball and a smaller - sized circle to represent the soccer ball facing each other, indicating they are about to collide.

Step2: Draw force arrows

Draw two arrows of equal length on the basketball and soccer ball respectively. Make sure the arrows point in opposite directions to show the equal - magnitude and opposite - direction forces during the collision.

Step3: Draw velocity - change arrows

Since the mass of the basketball ($m_{b}=0.6$ kg) is greater than the mass of the soccer ball ($m_{s}=0.4$ kg), according to Newton's second law $F = ma$ (where $F$ is the force, $m$ is the mass, and $a$ is the acceleration), for the same force, the soccer ball will have a larger acceleration and thus a larger velocity change. So draw a longer velocity - change arrow on the soccer ball and a shorter one on the basketball.

Answer:

A simple stick - figure style drawing with two circles representing the balls, equal - length and opposite - direction force arrows on each ball, and a longer velocity - change arrow on the soccer ball and a shorter one on the basketball.