Hinge -Steel rod A rod of mass 6 kg and length 2 m hangs from a hinge as shown in the figure. The end of the rod is then given a "kick" so that it is moving at a speed of 4 m/s. How high will the rod swing? Express your answer in terms of the angle (in degrees) that the rod makes with the vertical. Submit Answer Incorrect. Tries 3/5 Previous Tries

Hinge -Steel rod A rod of mass 6 kg and length 2 m hangs from a hinge as shown in the figure. The end of the rod is then given a "kick" so that it is moving at a speed of 4 m/s. How high will the rod swing? Express your answer in terms of the angle (in degrees) that the rod makes with the vertical. Submit Answer Incorrect. Tries 3/5 Previous Tries

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Energy Of A System

Section: Chapter Questions

Problem 10P: In a control system, an accelerometer consists of a 4.70-g object sliding on a calibrated horizontal...

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Using a screwdriver, you try to remove a screw from a piece of furniture, but cant get it to turn. To increase the chances of success, you should use a screwdriver that (a) is longer, (b) is shorter, (c) has a narrower handle, or (d) has a wider handle.
In a control system, an accelerometer consists of a 4.70-g object sliding on a calibrated horizontal rail. A low-mass spring attaches the object to a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out vibrations of the sliding object. When subject to a steady acceleration of 0.800g, the object should be at a location 0.500 cm away from its equilibrium position. Find the force constant of the spring required for the calibration to be correct.
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One person was doing a knee extensor muscle training, he used a dumbbell (mass = 10.2 kg) strapped to the ankle joint and was 0.4 m from the knee joint (see attached figure). The dumbbell was 0.3 m away from the knee joint in the horizontal direction. if the lever arm for the knee extensor muscle force was 0.04 m about the knee joint center, what amount of force must the knee extensor muscle produce to hold the leg in the above position? (Ignore the weight of the leg)
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