5. A 20.0-N block is attached to the end of a rope, and the rope is looped around a pulley system. If you pull the opposite end of the rope a distance of 2.00 m, the pulley system raises the block a distance of 0.40 m. What is the pulley system's ideal mechanical advantage?
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- A gardener pushes a 12 kg lawnmower whose handle is tilted up 37∘ above horizontal. The lawnmower's coefficient of rolling friction is 0.20. How much power does the gardener have to supply to push the lawnmower at a constant speed of 1.0 m/s ? Assume his push is parallel to the handle. Needs Complete typed solution with 100 % accuracy.A gardener uses a wheelbarrow to carry a bag of mulch (decaying leaves, bark and compost) that weighs 150 lbs. and requires 60 lbs. of effort. The distance from the wheel’s axle to the effort is 8 feet. a). What is the Actual Mechanical Advantage of the Wheelbarrow? b). What is the distance from the Wheel’s axle to the Load?You have Two boxes of mass 5.00 kg and 3.00 kg that are attached via a pulley, as seen in the picture below. The system is given an initial speed of vi=0.840 m/s and comes to rest after each box moves 1.20m. Use the conservation of energy rule/principle to figure out the coefficient of kinetic friction between the 5.00kg box and the surface of the table. Assume the pulley has no mass and is frictionless. v₂ = 0.84 m/s 5 kg 1.2 m 3 kg Vi
- Sergei uses a lever to lift a heavy rock. He obtains a 2.5 m lever and places the fulcrum 0.7 m from the rock. What is the ideal mechanical advantage of Sergei's levér? A 0.32 0.47 2.6 D 3.1The puck in the figure below has a mass of 0.120 kg. The distance of the puck from the center of rotation is originally 32.0 cm, and the puck is sliding with a speed of 80.0 cm/s. The string is pulled downward 12.5 cm through the hole in the frictionless table. Determine the work done on the puck. (Suggestion: Consider the change of kinetic energy.) J 1x 0 R mThe puck in the figure below has a mass of 0.224 kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 70.0 cm/s. The string is pulled downward 15.0 cm through the hole in the frictionless table. Determine the work done on the puck. Hint: Consider the change in kinetic energy of the puck. J m P
- A 50 N force is applied to the system for 15 seconds that makes the system displaced for 150 cm from its initial position. Determine the power after doing this on the system.A bowler uses a lane with a coefficient of kinetic friction of 0.156. The bowler releases her 5.30 kg bowling ball with a translational speed of 3.45 m/s. At the moment of release, the ball is not rotating. As the ball slides, it begins to rotate. What is the work ?ncWnc done by friction on the ball before it transitions to rolling without slipping? Use g=9.81 m/s2 for the acceleration due to gravity.Item 11 The pulley in (Eigure 1) has radius 0.160 m and moment of inertia 0.380 kg. m². The rope does not slip on the pulley rim. Figure 4.00 kg 5.00 m 2.00 kg 1 of 1 Part A Use energy methods to calculate the speed of the 4.00 kg block just before it strikes the floor. Express your answer with the appropriate units. V= Submit μA Value Request Answer < Return to Assignment Units SWIN Provide Feedback ? 11 of 11 Review | Constants