In the figure, block 1 has mass m, = 440 g, block 2 has mass m2 = 590 g, and the pulley is on a frictionless horizontal axle and has radius R= 5.4 cm. When released from rest, block 2 falls 78 cm in 5.3 s without the cord slipping on the pulley. (a) What is the magnitude of the acceleration of the blocks? What are (b) tension T2 (the tension force on the block 2) and (c) tension T1 (the tension force on the block 1)? (d) What is the magnitude of the pulley's angular acceleration? (e) What is its rotational inertia? Caution: Try to avoid rounding off answers along the way to the solution. Use g = 9.81 m/s?. m, m2 (a) Number i Units (b) Number i Units (c) Number Units (d) Number i Units (e) Number Units

In the figure, block 1 has mass m, = 440 g, block 2 has mass m2 = 590 g, and the pulley is on a frictionless horizontal axle and has radius R= 5.4 cm. When released from rest, block 2 falls 78 cm in 5.3 s without the cord slipping on the pulley. (a) What is the magnitude of the acceleration of the blocks? What are (b) tension T2 (the tension force on the block 2) and (c) tension T1 (the tension force on the block 1)? (d) What is the magnitude of the pulley's angular acceleration? (e) What is its rotational inertia? Caution: Try to avoid rounding off answers along the way to the solution. Use g = 9.81 m/s?. m, m2 (a) Number i Units (b) Number i Units (c) Number Units (d) Number i Units (e) Number Units

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 33P: Two blocks, each of mass m = 3.50 kg, are hung from the ceiling of an elevator as in Figure P4.33....

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2.2
For V1=V1x^(unit vector) and V2=V2x^, it is V1>0 and V2<0. Accelerations are a1=a1x^, a2=a2x^and a3=a3y^. ropes and pulleys are massless and frictionless. Solve the problem using the coordinate system given in the figure. For m1=m2, find a1, a2, a3 in terms of (m1, m2, m3, g and µ). Hint given in figure 2
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The cable supporting a 2105 -kg elevator has a maximum strength of 23260 N. What maximum upward acceleration can it give the elevator without breaking? Express your answer using two significant figures.
The figure shows two blocks connected by a cord (of negligible mass) that passes over a frictionless pulley (also of negligible mass). The arrangement is known as Atwood's machine. Block 1 has mass m, = 1 kg; block 2 has mass m, = 2.3 kg. What are (a) the magnitude of the blocks' acceleration and (b) the tension in the cord? (a) Number i Units (b) Number i Units
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When you do a chin-up, you raise your chin just over a bar (the chinning bar), supporting yourself with only your arms. Typically, the body below the arms is raised by about 30 cm in a time of 1.0 s, starting from rest. Assume that the entire body of a 680-N person doing chin-ups is raised by 30 cm, and that half the 1.0 s is spent accelerating upward and the other half accelerating downward, uniformly in both cases. Draw a free-body diagram of the person’s body, and use it to find the force his arms must exert on him during the accelerating part of the chin-up. Show complete solution.
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In the figure, block 1 has mass m - 480 g, block 2 has mass m2 - 510 g, and the pulley is on a frictionless horizontal axle and has radius R-4.6 cm. When released from rest, block 2 falls 72 cm in 4.6 s without the cord slipping on the pulley. (a) What is the magnitude of the acceleration of the blocks? What are (b) tension T2 (the tension force on the block 2) and (c) tension T1 (the tension force on the block 1)? (d) What is the magnitude of the pulley's angular acceleration? (e) What is its rotational inertia? Caution: Try to avoid rounding off answers along the way to the solution. Useg= 9.81 m/s?. (a) Number i Units (b) Number i Units (c) Number Units (d) Numberi Units (e) Numberi Units
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