Blocks A has a mass of 20 kg and B has a mass of 50 kg. Block B rest the coefficients of a static and kinetic friction between A and B respectively, consider the following TWO cases: Case #1: force P = 100 N. determine (use g=9.81 m/s²) (1) The acceleration of each block (may or may not the same) (2) The magnitude of friction force between A and B
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- Block B in the figure weighs 800 N. The coefficient of static friction between block and table is 0.290; angle θ is 27.0°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.Part 2) A block with a mass of m = 0.410 kg is placed on a plane that can be tilted, as shown below. The coefficient of static friction between the block and the plane is 4, = 0.350, while the coefficient of kinetic friction between the block and the plane is Hk = 0.270. The angle between the inclined plane and the block is slowly increased. No additional force is applied to the block. m At what angle will the block start to slide down the plane? Part 3) If the plane is at the angle you calculated in Part 2, what will be the acceleration of the block down the plane? a = m/s? down the planeProblem 2: A block with a mass of m = 1.5 kg rests on a wooden plank. The coefficient of static friction between the block and the plank is u, = 0.84. One end of the board is attached to a hinge so that the other end can be lifted forming an angle, 0, with respect to the ground. Assume the x-axis is along the plank as shown in the figure. m
- A car traveling at 53 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 64 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's upper torso, which has a mass of 38 kg? Number i Units2. ) Two blocks of masses m, = m2 = 1.0 kg are at rest on the inclined plane as shown in the figure. Both blocks are made up of different materials such that the coefficient of 3.0 kg and m2 m1 static friction between the surfaces of block m, and incline plane is 0.7, while the coefficient of static friction between the surfaces of block m, and incline plane is 0.5. Answer the following questions. 30° a. Draw a free-body force diagram for the mass m (Remember: the free-body force diagram should be drawn without the body and on XY coordinate axes, where the positive X-axis is downward along the inclined plane)(Show all forces and level the name of the forces clearly) b. Write down Newton's second Law for mass m, along X-axis (Hint: Simply expand the summation in the equation EF, = m,a to include all forces. No calculation is required) С. Find the maximum possible static friction force on mass m.. d. Determine the magnitude of the interaction force between blocks m, and m2. (show all…Question 4 Which of the following best describes the directions of friction and normal force? Your answer: Friction is always horizontal and normal force is always vertical. Friction is always horizontal and normal force is always perpendicular to the surface. Friction is always parallel to the surface and nomal force is always vertical. Friction is always parallel to the surface and normal force is always perpendicular to the surface. There is no consistent pattem.
- Don't use chat gpt It Chatgpt means downvoteTwo objects are connected to a pulley and a rope as shown below. Object A has a mass of 2 kg and Object B has a mass of 4 kg. The coefficient of dynamic friction between object A and the horizontal plane is 0.28. Find the downward displacement of object B until object A starts at rest and the velocity reaches 4 m/s. (Ignore the friction between the pulley and the rope.) A 13Continuing from problem 8, the force F is increased to 50 N. The data are as follows: a) The object's mass is 4 kg, b) g = 10 m/s². c) Coefficient of the kinetic friction = 0.5 / sqrt(3) and coefficient of the static friction = 1 / sqrt(3). d) Magnitude of the force F = 50 N. 30⁰ F What is the acceleration of the object in m/s²? Round to the nearest decimal.
- Determine the magnitude and direction of acceleration of a system composed of a 4kg cast iron block and a 3kg steel block connected by a pulley. The two blocks are placed on each side of a 2-sided brass inclined plane. The cast iron is placed on the 20-degree side, while the steel is placed on the 45-degree side of the inclined. The coefficients of kinetic friction for cast iron and steel on brass are 0.30 and 0.44 respectively. The static coefficientsof friction are 0.40 for cast iron on brass and 0.50 for steel on brass.Block B in the figure weighs 765 N. The coefficient of static friction between block and table is 0.30; angle 0 is 26°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary. Number Units B Knot 0The coefficient of kinetic friction is less than the coefficient of static friction. a) True b) False