Final answer:
The question lacked sufficient information to compute specific values for acceleration, friction, potential energy, and kinetic energy of the sled. However, instructions for calculating related physics problems are presented, demonstrating the use of Newton's second law and other physical principles.
Step-by-step explanation:
The original question does not provide enough information to accurately determine the acceleration of the sled, the friction force acting on the sled, its potential energy, or its kinetic energy. However, I can provide answers based on a similar question.
For question 114:
(a) To calculate the horizontal acceleration of the sled, we must find the net horizontal force and then use Newton's second law, F = ma, to find the acceleration. The horizontal component of the applied force can be found using trigonometry, Fx = Fcos(θ), where F is the applied force and θ is the angle with respect to horizontal. The friction force, which opposes motion, can be calculated using the coefficient of kinetic friction and the normal force. The normal force in this case is the cosine component of the weight of the sled plus the sine component of the pulling force. After finding the net horizontal force, the acceleration can be calculated using a = Fnet/m.
(b) To pull the sled at constant velocity, the applied force must equal the friction force.