A 11 kg block rests on a 26 degree inclined frictionless surface and is attached by a light string to a 30 kg hanging mass where the string passes over a massless frictionless pulley. If g = 9.8 m/s2, what is the tension in the connecting string?
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- he Atwood machine shown below, m, -2.00 kg and my 6.80 kg. The masses of the pulley and string are negligible by comparison. The puley tus without ricton and the string does not stretch The ter object is released with a sharp push that sets it into motion at v -2.35 m/s downward. (a) How far will m, descend below ts intial level (b) Find the velocity of m wter 10s magude direction Additional Materials Sclecd- wcy abook Activate Windos pwardA light rope is attached to a block with mass 4.00 kg that restson a frictionless, horizontal surface. The horizontal rope passes overa frictionless, massless pulley, and a block with mass m is suspendedfrom the other end. When the blocks are released, the tension in therope is 15.0 N. What is the acceleration of either block?A light rope is attached to a block with mass 4.00 kg that restson a frictionless, horizontal surface. The horizontal rope passes overa frictionless, massless pulley, and a block with mass m is suspendedfrom the other end. When the blocks are released, the tension in therope is 15.0 N. How does the tension compare to the weight of the hanging block?
- Aforce of 109N is used to accelerate a block of icewith a weight of 614N along a horizontal surface where it encounters a kinetic friction force of 38N.What is the horizontal acceleration of the block of ice?A cube of mass ?? is initially at rest at thepeak of an inclined plane, which has a heightof 4.6 m and has an angle of θ = 25° withrespect to the horizontal. After it has beenreleased, you notice it to be travelingat v = 5.5 m/s as it leaves the ramp. What isthe coefficient of kinetic friction along theramp?A 5.50kg block starts from rest and slides on a 30°wedge, which issupported by a horizontal surface. The weight of the wedge is 13.70kg. If weneglect the effect of friction, determine: the acceleration of the wedge; the acceleration of the block in relation to the wedge?
- A nucleus that captures a stray neutron must bring the neutronto a stop within the diameter of the nucleus by means of thestrong force. That force, which “glues” the nucleus together, is approximatelyzero outside the nucleus. Suppose that a stray neutronwith an initial speed of 1.4 * 107 m/s is just barely captured by anucleus with diameter d = 1.0 * 10-14 m. Assuming the strongforce on the neutron is constant, find the magnitude of that force.The neutron’s mass is 1.67 * 10-27 kg.A rope of negligible mass is connected to a 4-kg block situated on a horizontalfrictionless surface. The rope passes over a pulley with negligible friction andmass, where a block with mass m hangs from the other side. When the twoblocks were let go, the rope yielded a 15-N tension force.A circular disc bears against a frame structure and a wall, as shown inthe figure. All contacts with the disc are frictionless. The frame structurehas pin supports at A and B; there is an internal pin connection at C. If themaximum allowable reaction force at either of the pin supports is 8 kN, what isthe maximum allowable weight of the disk?
- In the following figure m = 20.0 kg and a622 The coetticient of kinetic friction betwoen the biock and the incline is a -0.40 (Eigure 1) Part A What must be the mass my of the hanging block ifit ia to descend 14.5 m in the tinst 3.00 s after the system is neleaned from rest? Express your anewer with the appropriate units. Figure t of 1 my Value Units Submit Bequest Aner Provide Feedback Next>A 10N force is applied (pushed down) at a 37 degrees angle onto a Box at rest. The Box then reaches a speed of 30 m/s in 15 seconds along a frictionless surface. What is the mass of the Box in kg?As a fish jumps vertically out of the water, assume thatonly two significant forces act on it: an upward force F exertedby the tail fin and the downward force due to gravity. A recordChinook salmon has a length of 1.50 m and a mass of 61.0 kg.If this fish is moving upward at 3.00 m/s as its head first breaksthe surface and has an upward speed of 6.00 m/s after twothirdsof its length has left the surface, assume constant accelerationand determine (a) the salmon’s acceleration and (b)the magnitude of the force F during this interval.