Question

huff & puff lab
picture
questions
is the ball accelerating or not?
is the net force (σf) on the ball 0 newtons or not?
are the forces on the ball balanced or unbalanced?
choose the free body diagram that represents the ball in this scenario.

Explanation:

Step1: Recall Newton's laws

Acceleration occurs when net - force is non - zero. Since the ball is accelerating, net force $\Sigma F
eq0$ N and forces are unbalanced.

Step2: Analyze free - body diagram

The ball is moving horizontally with an applied force ($F_A$) and has a gravitational force ($F_g$) acting downwards and a normal force ($F_N$) acting upwards. The correct free - body diagram should show these forces. The free - body diagram with $F_N$ upwards, $F_g$ downwards and $F_A$ horizontally to the right represents the ball in this scenario.

Answer:

The free - body diagram with $F_N$ upwards, $F_g$ downwards and $F_A$ horizontally to the right.