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A cord is wrapped around the rim of a solid uniform wheel 0.280 m in radius and of mass 9.60 kg. A steady horizontal pull of 50.0 N to the right is exerted on the cord, pulling it off tangentially from the wheel. The wheel is mounted on frictionless bearings on a horizontal axle through its center
Part A Compute the angular acceleration of the wheel.
part B compute the acceleration of the part of the cord that has already been pulled off the wheel.
Part C Find the magnitude of the force that the axle exerts on the wheel.
Part D Find the direction of the force that the axle exerts on the wheel.
Part E Which of the answers in parts A, B, C, and D would change if the pull were upward instead of horizontal.
A spring has a spring constant of k = 7.500N/m. If the spring is displaced 0.5500 from its equilibrium position, what is the force that the spring exerts
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Your average speed on the first half of a car trip is 75.0 km/h. How fast do you have to drive on the second half of the trip to achieve an average speed of 83.0 km/h for the whole trip
An oxygen molecule has a vibrational mode that behaves approximately like a simple harmonic oscillator with frequency 2.99 X 10^14 rad/s. Calculate the energy of the ground state
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A horizontal board weighing 198 N is supported at points A and B. The plank serves as a platform for a painter, who weighs 558.5 N. Find out the maximum distance D, such that the plank would not tip, no matter where the painter stands.
q1. an engine does 20000 j of work and rejects 6120 j of heat into a cold reservoir whose temperature is 285 k. what
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In two different cases, two blocks are sliding to the right across a horizontal surface. In Case A the mass of each block is 3.9 kg. determine the magnitude of the acceleration of the blocks
A helicopter lifts a 72 kg astronaut 19 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/12. How much work is done on the astronaut
how high above the target must the rifle barrel be pointed.
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