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- A heavy industrial block slides from rest from point A down a plane inclined 30 degrees to the horizontal. After reaching the bottom of the plane, the block moves on the horizontal floor at a distance 2m before coming to rest. If the coefficient of friction between the block and plane and between block and floor is 0.40, what is the distance of point A from the intersection of the plane and the floor? Answer in meters and 2 decimal placesA 1904 Ib car starts from rest at point 1 and moves without friction down the track shown. Determine the force (Ib) exerted by the track on the car at point 2 if a = 47 ft, b = 13 ft and r= 23 ft. Round off only on the final answer expressed in 3 decimal places. WE exercise3(1).png4. For this series of 4 questions, two blocks, A and B, are connected using the cable and pulley system as shown. (The cable and pulley system is friction-less and weight- less.) The coefficient of kinetic friction between block A and the inclined plane is μ = 0. 2. Initially the blocks are moving but eventually come to stop. You will be asked to solve for different things. Please pay attention: the numbers may change from problem to problem since they are randomized. 4) If block A weighs 100 lb and block B weighs 65 lb, and initially block A moves down the plane at a velocity of 7.1 ft/s, determine how far block A will move along the surface until it stops. Your answer must include 2 places after the decimal point and the proper unit. Take g = 32.2 ft/s². A Your Answer: Answer B units C D
- A block of mass 105 kg lies on a horizontal plane. A horizontal force F of magnitude 1156 N is applied to the block causing it to move 2.14 meters. If the coefficient of friction between the block and the horizontal surface is 0.34, find the acceleration (in m/s2 ) of the block. Round off only on the final answer expressed in 3 decimal places. Use g = 9.81 m/s24. For this series of 4 questions, two blocks, A and B, are connected using the cable and pulley system as shown. (The cable and pulley system is friction-less and weight- less.) The coefficient of kinetic friction between block A and the inclined plane is μk = 0. 2. Initially the blocks are moving but eventually come to stop. You will be asked to solve for different things. Please pay attention: the numbers may change from problem to problem since they are randomized. 3) If the blocks and the cable-pulley system are considered as one system, during this process from the blocks moving to them coming to stop, which forces are doing work to this system? A B C D Weight of block B. Weight of block A. Friction between block A and the incline plane. Tension force in the cable connecting to block B. Tension force in the cable connecting to block A.A block of mass 121 kg lies on a horizontal plane. A horizontal force F of magnitude 1032 N is applied to the block causing it to move 3.28 meters. If the coefficient of friction between the block and the horizontal surface is 0.23, find the velocity (in m/s) of the block. Round off only on the final answer expressed in 3 decimal places. Use g = 9.81 m/s2
- The 300N block rests upon a level plane for which the fk is 0.20. A force P = 100N, directed at 30° from the horizontal pulls the block and moves 80m starting from rest. If the 100N force is then removed, how much further will it travel? a. none b. 48.803m c. 40.078m d. 47.800m 3. 40.780mQUESTIONS 1. 500 kg roller starts from a point A as shown in the diagram below. If throughout its travel the average retarding force due to air friction on the wheel is 200 N. What is its speed at points B and C given that |AB| = 100 m and |BC| = 50 m. How far will it travel at the elevation of C before coming to rest? A to 20 m 5 m 2. Under a constant force, a 10 kg ball increases its speed from 2.0 ms- to 7 ms after covering 50 m. Calculate the force on the ball. 3. A stone is thrown vertically upwards fiom the top of a building 50 m tall with velocity of 20.0 ms. If the stone just misses the edge of the roof on its return, determine (a) The time taken by the stone to get to its maximum height. (b) The maximum height reached by the stone (c) The time at which the stone retum to the point where it was thrown (d) The velocity of the stone at this instance (e) The velocity and position of the stone at t= 5 s. initial 4. (a) What is the difference between inertia and momentum? (b) A…30.A block is started from rest at the top of an inclined plane 6 meters long which makes45 degrees with the horizontal. The coefficient of friction between the block and theplane is 0.20. At the foot of the plane, the block continues to move along a horizontalsurface. If the coefficient of friction between the block and the horizontal surface is0.15, how far does the block go along the horizontal surface?
- F = 262 N is applied to the end at B. Solve for the speed, in m/s, of the 11 kg block when it has moved 4.922' from rest. Round your answer to 2 decimal places. A O FA block of mass 48.3 kg lies on a horizontal plane. A force F that is inclined 42.2° with the horizontal is applied to the block (pulled the block) causing it to move 14.7 meters in 5 seconds. If the coefficient of friction between the block and the horizontal surface is 0.4, find the magnitude (N) of the force F. Round off only on the final answer expressed in 3 decimal places.Two blocks are being pushed along an incline. Block A weighs 7.00 kg and block B weighs 14.00 kg. The coefficient of non-sliding friction between block B and the surface of the incline is 0.200 and the coefficient of sliding friction is 0.1000. Assume that the coefficient of friction between the two blocks are too high to cause sliding between the two blocks. The applied force is 185 N. A 185 N 40° 4.Which of the following gives the closest value to the magnitude of the frictional force between block B and the incline? 52.6 N 15.78 N 31.6 N 10.52 N