To prevent the crate from slipping, the maximum force that the belt can exert on the crate must be equal to the static friction force.
Ff = 0.5 * 16 * 9.8 = 78.4 N
a = 4.9 m/s^2
If acceleration of the belt exceeds the value determined in the previous question, what is the acceleration of the crate?
In this situation, the kinetic friction force is causing the crate to decelerate. So the net force on the crate is 78.4 N minus the kinetic friction force.
Ff = 0.28 * 16 * 9.8 = 43.904 N
Net force = 78.4 – 43.904 = 34.496 N
To determine the acceleration, divide by the mass of the crate.
a = 34.496 ÷ 16 = 2.156 m/s^2
The correct answer would be compound
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- Goals allow individuals to track their progress against others is not a reason behind exercise routines have clearly stated goals.
- Specificity means an exercise program should have end goals that target specific areas. This statement is true.
Further Explanation:
The fitness program helps in achieving good health. To start fitness program we have to make fitness goals, create a healthy diet. Physical fitness is the capability of a body to perform daily activity.
Physical fitness helps us to prevent heart disease, lung cancer, stroke, and type II diabetes. Progress of a fitness program is very slow it takes time. It is more difficult to maintain a program for a long time with the same enthusiasm. We can set the goal and check whether we are progressing or not. If the goals of an individual are successfully attain then an individual gets motivated for the next day. When the goals are not achieved, it is important to check for the part that can be improved. We mainly set goals for own concerns, satisfaction and achievement. Goals are not related to others.
Specificity is occurring in a specific reaction that occurs as a result of exercise program. Specificity increases the long-term adaptations to occur with progressive overload. Specificity—a focus on particular movements, muscles, velocity and energy systems —drives the gains you make in training and practice. If an individual doesn't intentionally train for something, it may not occur.
Specificity is decreased when an individual is not focusing on the goal. Specificity helps in achieving their goals. Then, an individual have to set a fresh goal for the assessment and train themselves for that particular goal. Individuals who are involved in fitness programs should set goals and weekly asses the progress by the fitness evaluation test. If we achieve our goals we should give our self-reward.
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Answer Details:
Grade: High School
Subject: Health
Chapter: Fitness Program
Keywords:
Physical fitness, healthy diet, heart disease, cancer, fitness program, goal, specificity, evaluation, fitness program, adaptation, cancer, stroke, response.
Answer:
answer is d from my guess
