A wedge of mass 2m placed on a rough surface, its part AB is circular of radius R. A small block of mass m is released from rest at A. Find minimum value of friction between wedge and ground so that wedge remains at rest.

3. A vehicle, mass 1400 kg, passes a bend at a speed of 54 km/hr. The radius of curvature of the road is 60 m. Determine the minimum coefficient of static friction between the car tires and the road, so that the car can pass through corners safely.

Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A loading car is at rest on a track forming an angle of 25° with the vertical when a force is applied to the cable attached at C. The gross weight of the car and its load is 5495 lb WG, and it acts at point G. Know the tension in the cable connected at C is 5000 lb Tc. Neglect friction between the car and the track. 24 in. 25 25.in. T 25 in. C B 30 in. Determine the distance the car moves in 20 s. (You must provide an answer before moving on to the next part.) The distance the car moves is I

A round object of mass M and radius R roll down a hill of height h. Calculate the linear speed of the object (in terms of M, g, R, and h) when it reaches the bottom of the hill.

A slender bar with a length of 2 ft is pin-connected with a roller positioned on a smooth horizontal surface. The bar is at rest initially, and a horizontal force F is applied to the roller. If F = 13 lb and the weight of the bar is 10 lb, calculate the magnitude of the acceleration of the roller at that instant by neglecting the mass and the size d of the roller. Present your answer in ft/sec² using 3 significant figures. FOR COMARCA 2 ft F

A rectangular block of mass m is on top of a wedge-shaped block of mass M and angle θ, as shown below. All contact surfaces are frictionless. A horizontal force of magnitude F is applied to the wedge such that the rectangular block moves with the wedge and does not slide. (a) Draw free-body diagrams for each block separately in code. Indicate the direction of the acceleration for each block. Identify the forces on these diagrams that are Newton's third-law force pairs. (b) Find the magnitude of F in terms of m, M, g, and θ

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PROBLEM NUMBER 2 DYNAMICS THE CIRCULAR PACKAGE (B) AND THE BOX PACKAGE (A) SHOWN BELOW HAS AN IDENTICAL MASS OF 2.70 kg. IF THE COEFFICIENT OF KINETIC FRICTION BETWEEN BOX A AND THE CONTACT SURFACE IS 0.15. CALCULATE THE ACCELERATION OF BOX A IF THE CIRCULAR PACKAGE MOVES DOWN WARD A 34°

5) A block weighing 50 lb is shown on an inclined surface. The block is released from rest at the po- sition shown. The spring has a spring constant of k = 10 lb/in., and the coefficient of friction be- tween the block and the incline is 0.3. What is the maximum compression of the spring? 6) For the system in Question 5, what is the velocity of the block the moment it leaves the spring? 50 lb 10' 30° K www. Page 1 of 2