Physics, 17.09.2021 08:50 twalters88
A spring is mounted horizontally ,with its left end fixed .a spring balance attached to the free end and pulled toward the right indicates that the streching force is proportional to the displacement and a force of 6 N causes a displacement of .03m we replace the spring balance with a .5kg glider ,pull it 0.02 m to the right along a frictionless air track, release it from rest.
i) find the maximum and minimum velocities attained by the oscillating glider?
ii) find the maximum and minimum accelerations
iii) find the velocity v and acceleration a when the glider is halfway from its initial position to the equilibium position x = 0
iv) find the energy ,potential energy and kinetic energy at this position
Answers: 2
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Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
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Auniform bridge, 20 m long and weighing 40000 n is supported by two pillars located 3.0 m from each end. if a 19600 n car is parked 8.0 m from one end of the bridge, how much force does each pillar exert?
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A spring is mounted horizontally ,with its left end fixed .a spring balance attached to the free end...
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