complete the free body diagram by labeling the forces acting on the sled. assume air resistance is…
complete the free body diagram by labeling the forces acting on the sled. assume air resistance is negligible. click each dot on the image to select an answer.
Answer
Explanation:
Step1: Identify vertical forces
Gravity acts downwards (weight of the sled, $mg$ where $m$ is mass and $g$ is gravitational - acceleration). The normal force acts upwards, perpendicular to the surface the sled is on, balancing the vertical component of the weight if on a flat surface.
Step2: Identify horizontal forces
If the sled is being pulled, there is a pulling force in the direction of motion. If it is on a rough surface and in motion or trying to move, there is a frictional force acting in the opposite direction of the pulling force or the direction of impending motion.
Answer:
Top - Normal force (upwards). Bottom - Weight (downwards, $mg$). Left - Frictional force (if applicable, opposite to motion). Right - Pulling force (if applicable, in the direction of motion).