A ring of mass m is attached to the spring and slides over the rod. Unextended length of the spring 10 and the spring coefficient is k. When the collar is at point C, it is released and between the collar and bar Since the coefficient of friction is uk; a)Find the velocity of the ring at points A and B using the Work-Energy method. b)Find the normal forces acting on the collar at points A and B.

Sketch a free body diagram, Apply the principle of work and energy to the system to find the tension in the rope. Please use solve with the method provided only and apply the relevant kinematic equation(s) Keep final answer in lb*ft/s.

In the figure shown, a 10 kg block rests on an inclined plane that has a co-efficient of friction u = 0.5. A force of 40ON is applied in the given direction parallel to the ground. Find: (i) The acceleration with which the mass moves up along the inclined plane (ii) The time taken to reach the top and final velocity (assume it starts at rest) DO NOT USE ENERGY APPROACH DO NOT USE ENERGY APPROACH.] NOTE F= 400N parallel to the ground a = ? 0.5 F 400N cpanallet fo @ll ma gaaund) 0=300

A sled of mass 500kg sits at rest on a rough slope that is inclined at 10* to the horizontal. The coefficient of friction between the slope and the sled is 0.3. The sled is held in place by a wire attached to a winch. The tension in the wire is TN. a) Find the maximum possible value of T.   A load of mass mkg is added to the sled, and tension in the wire is increased to 5000N in order to pull the sled and load up the slop. Given that the sled and load are pulled a distance of 100m in 80seconds, b) Work out the value of m