8. In the below figure, we see two blocks connected by a string and tied to a wall. The mass of the lower block is 1.0 kg; the mass of the upper block is 2.0 kg. Given that the angle of the incline is 31°, find the tensions in (a) the string connecting the two blocks and (b) the string that is tied to the wall. 2.0 kg 1.0 kg C 31
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- 1. Three blocks are being pulled to the right by a 100N force. Find the tensions in each string connecting the masses. Assume that the surface is frictionless. You may find it easiest to start by drawing the free body diagram of the entire system. 100 N 3kg 4kg 5 kg8. Consider a 50-N weight suspended by two wires as shown. If the magnitude of vector F, is 35 N, find the angle a and the magnitude of vector F2. 60 5017. Three blocks are connected on a table as shown in the figure. The blocks have masses m1 = 4 kg, m2 = 1 kg, and m3 = 2 kg. The coefficient of kinetic friction between block m, and the table is Assume the pulleys are massless and frictionless. a) Calculate the acceleration of each block. b) Calculate the tensions in each of the two 0.35. ropes.
- The masses of the red and blue wagons are 6.09 kg and 2.63 kg, respectively. If the red wagon is pulled by 18.9 N force, the tension (N) in the cable connecting the two wagon of the system is:3. DETERMINE THE TENSION IN THE TWO NYLON CORDS USED TO SUPPORT A 5ON WEIGHT. 45° 45% 45° 30° 60° 60° 50 N1. What is the weight of a car sitting on a 14˚ slope if the force required to push the car up the hill is 750 pounds? 2. A 3,000‐pound car is sitting on a 12˚ slope. Find the magnitude of the force required to keep the car from rolling down the hill and the magnitude of the force perpendicular to the hill. 3. Two people push a 200‐pound box up a ramp. Each person pushes with a force of 75 pounds in the direction of the incline up the ramp, and the box just slides along the ramp. At what angle is the ramp inclined? 4. Determine the work done by a crane lifting a 2400‐pound car 5 feet. 5. A force of 50 pounds, exerted at an angle of 25˚ with the horizontal, is required to slide a desk across the floor. Determine the work done in sliding the desk 15 feet. 6. A force of 600 pounds is required to pull a shipping crate up a ramp inclined at 25˚ from the horizontal. Find the weight of the shipping crate
- 2. A crate is being suspended by two cables as shown in the diagram. Determine the maximum weight of the crate. 50° 500 N Crate 800 NTwo packing crates of masses 10.0 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley as in the Figure below. The 5.00 kg crate lies on a smooth incline of angle 40.0°. a) the magnitude of the acceleration of the crates b) the tension in the string7. A 4.50 kg block is pressed against a vertical wall by a force (→F), as shown in the figure below. The coefficient of static friction between the block and the wall is 0.32 and the directional angle θ for the force is 46°. Determine the magnitude of the force (→F) when the block is about to slide up the wall.
- 3. A 6.50 kg block is pressed against a vertical wall by a force (F), as shown in the figure below. The coefficient of static friction between the block and the wall is 0.41 and the directional angle 0 for the force is 46º. Determine the magnitude of the force (F) when the block is about to slide up the wall. N F éTwo masses m₁ = 7.1 kg and m2 = 3.6 kg are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the tension in the string is A. 11.4 N OB. 11.9 N OC. 23.4 N OD. 46.2 N E. 69.6 N m₁ m₂Two objects with masses of 3.00 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley. Determine… a) the accelertaion of each object b) the tension in the string c) if the mass of the 3.0 kg object is increased to 5.0 kg – what is the tension in the string?