The normal reactions at A and B when the dresser begins to move will be:
Normal Reaction at A = μs * mg = 0.3 * (80 lb) * 32.2 ft/s² = 96.6 lb
Normal Reaction at B = μk * mg = 0.2 * (80 lb) * 32.2 ft/s² = 64.4 lb
What is reaction?
Reaction is an action taken in response to a particular stimulus. It is the way in which people interact with the world around them. Reactions can be physical, mental, or emotional in nature. It is the way in which individuals respond to situations, people, and events. Reactions can range from positive to negative, and can even be neutral. Reactions are affected by a person's past experiences, beliefs, values, and emotional state. It is also influenced by external factors such as the environment, other people, and media. Reactions are an important part of social interaction and communication, as they provide feedback and help build relationships. They also provide insight into a person's personality, character, and values. Reactions are the building blocks of relationships, and it's important to be aware of how one's reactions affect others.
The smallest horizontal force P needed to cause motion is:
P = μs * mg = 0.3 * (80 lb) * 32.2 ft/s² = 96.6 lb
When the force is increased slightly, the acceleration of the dresser will be:
a = (P - μk * mg) / m = (96.6 - 0.2 * (80 lb) * 32.2 ft/s²) / (80 lb) = 7.7 ft/s²
The normal reactions at A and B when the dresser begins to move will be:
Normal Reaction at A = μs * mg = 0.3 * (80 lb) * 32.2 ft/s² = 96.6 lb
Normal Reaction at B = μk * mg = 0.2 * (80 lb) * 32.2 ft/s² = 64.4 lb
To learn more about reaction
https://brainly.com/question/19260256
#SPJ1
